3687870 has 16 divisors (see below), whose sum is σ = 8850960. Its totient is φ = 983424.

The previous prime is 3687869. The next prime is 3687911. The reversal of 3687870 is 787863.

It is a super-5 number, since 5×3687870⁵ (a number of 34 digits) contains 55555 as substring.

It is a congruent number.

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, 61435 + ... + 61494.

It is an arithmetic number, because the mean of its divisors is an integer number (553185).

Almost surely, 2^3687870 is an apocalyptic number.

3687870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3687870 is an abundant number, since it is smaller than the sum of its proper divisors (5163090).

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

3687870 is a wasteful number, since it uses less digits than its factorization.

3687870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122939.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 3687870 is about 1920.3827743447. The cubic root of 3687870 is about 154.4988322196.

The spelling of 3687870 in words is "three million, six hundred eighty-seven thousand, eight hundred seventy".