3729690 has 48 divisors (see below), whose sum is σ = 10038600. Its totient is φ = 959616.

The previous prime is 3729673. The next prime is 3729697. The reversal of 3729690 is 969273.

3729690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2134521 + 1595169 = 1461^2 + 1263^2 .

It is a super-2 number, since 2×3729690² = 27821174992200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3729697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1896 + ... + 3324.

Almost surely, 2^3729690 is an apocalyptic number.

3729690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3729690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5019300).

3729690 is an abundant number, since it is smaller than the sum of its proper divisors (6308910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3729690 is a wasteful number, since it uses less digits than its factorization.

3729690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471 (or 1468 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 3729690 is about 1931.2405339574. The cubic root of 3729690 is about 155.0806378887.

The spelling of 3729690 in words is "three million, seven hundred twenty-nine thousand, six hundred ninety".