3690972 has 72 divisors (see below), whose sum is σ = 10208016. Its totient is φ = 1119744.

The previous prime is 3690961. The next prime is 3690977. The reversal of 3690972 is 2790963.

3690972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3690977) 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, 22563 + ... + 22725.

It is an arithmetic number, because the mean of its divisors is an integer number (141778).

Almost surely, 2^3690972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3690972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5104008).

3690972 is an abundant number, since it is smaller than the sum of its proper divisors (6517044).

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

3690972 is a wasteful number, since it uses less digits than its factorization.

3690972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 222 counting only the distinct ones).

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

The square root of 3690972 is about 1921.1902560652. The cubic root of 3690972 is about 154.5421382533.

Subtracting from 3690972 its reverse (2790963), we obtain a palindrome (900009).

The spelling of 3690972 in words is "three million, six hundred ninety thousand, nine hundred seventy-two".