3689520 has 40 divisors (see below), whose sum is σ = 11438256. Its totient is φ = 983808.

The previous prime is 3689519. The next prime is 3689551. The reversal of 3689520 is 259863.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×3689520² = 27225115660800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7447 + ... + 7926.

Almost surely, 2^3689520 is an apocalyptic number.

3689520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3689520 is an abundant number, since it is smaller than the sum of its proper divisors (7748736).

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

3689520 is a wasteful number, since it uses less digits than its factorization.

3689520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15389 (or 15383 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 3689520 is about 1920.8123281570. The cubic root of 3689520 is about 154.5218703657.

The spelling of 3689520 in words is "three million, six hundred eighty-nine thousand, five hundred twenty".