3653972 has 24 divisors (see below), whose sum is σ = 7507584. Its totient is φ = 1523232.

The previous prime is 3653959. The next prime is 3653977. The reversal of 3653972 is 2793563.

3653972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3653972² = 26703022753568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3653977) 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 7 ways as a sum of consecutive naturals, for example, 728 + ... + 2799.

It is an arithmetic number, because the mean of its divisors is an integer number (312816).

Almost surely, 2^3653972 is an apocalyptic number.

It is an amenable number.

3653972 is an abundant number, since it is smaller than the sum of its proper divisors (3853612).

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

3653972 is a wasteful number, since it uses less digits than its factorization.

3653972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3575 (or 3573 counting only the distinct ones).

The product of its digits is 34020, while the sum is 35.

The square root of 3653972 is about 1911.5365547119. The cubic root of 3653972 is about 154.0240025555.

The spelling of 3653972 in words is "three million, six hundred fifty-three thousand, nine hundred seventy-two".