3698730 has 128 divisors (see below), whose sum is σ = 11980800. Its totient is φ = 793152.

The previous prime is 3698719. The next prime is 3698753. The reversal of 3698730 is 378963.

3698730 is nontrivially palindromic in base 11 and base 13.

It is a super-2 number, since 2×3698730² = 27361207225800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35859 + ... + 35961.

It is an arithmetic number, because the mean of its divisors is an integer number (93600).

Almost surely, 2^3698730 is an apocalyptic number.

3698730 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 3698730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5990400).

3698730 is an abundant number, since it is smaller than the sum of its proper divisors (8282070).

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

3698730 is a wasteful number, since it uses less digits than its factorization.

3698730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 3698730 is about 1923.2082570538. The cubic root of 3698730 is about 154.6503390992.

The spelling of 3698730 in words is "three million, six hundred ninety-eight thousand, seven hundred thirty".