3685690672 has 20 divisors (see below), whose sum is σ = 7153593480. Its totient is φ = 1839602048.

The previous prime is 3685690663. The next prime is 3685690681. The reversal of 3685690672 is 2760965863.

It is an interprime number because it is at equal distance from previous prime (3685690663) and next prime (3685690681).

It is a super-3 number, since 3×3685690672³ (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193318 + ... + 211525.

It is an arithmetic number, because the mean of its divisors is an integer number (357679674).

Almost surely, 2^3685690672 is an apocalyptic number.

It is an amenable number.

3685690672 is a deficient number, since it is larger than the sum of its proper divisors (3467902808).

3685690672 is a wasteful number, since it uses less digits than its factorization.

3685690672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405420 (or 405414 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 52.

The square root of 3685690672 is about 60709.8894085634. The cubic root of 3685690672 is about 1544.6839279002.

The spelling of 3685690672 in words is "three billion, six hundred eighty-five million, six hundred ninety thousand, six hundred seventy-two".