3689718 has 16 divisors (see below), whose sum is σ = 7402800. Its totient is φ = 1226016.

The previous prime is 3689717. The next prime is 3689723. The reversal of 3689718 is 8179863.

It is a super-2 number, since 2×3689718² = 27228037839048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3689718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3689711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1608 + ... + 3156.

It is an arithmetic number, because the mean of its divisors is an integer number (462675).

Almost surely, 2^3689718 is an apocalyptic number.

3689718 is an abundant number, since it is smaller than the sum of its proper divisors (3713082).

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

3689718 is a wasteful number, since it uses less digits than its factorization.

3689718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951.

The product of its digits is 72576, while the sum is 42.

The square root of 3689718 is about 1920.8638681593. The cubic root of 3689718 is about 154.5246344816.

The spelling of 3689718 in words is "three million, six hundred eighty-nine thousand, seven hundred eighteen".