7681900 has 18 divisors (see below), whose sum is σ = 16669940. Its totient is φ = 3072720.

The previous prime is 7681889. The next prime is 7681937. The reversal of 7681900 is 91867.

It is a super-2 number, since 2×7681900² = 118023175220000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38310 + ... + 38509.

Almost surely, 2^7681900 is an apocalyptic number.

It is an amenable number.

7681900 is an abundant number, since it is smaller than the sum of its proper divisors (8988040).

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

7681900 is a wasteful number, since it uses less digits than its factorization.

7681900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76833 (or 76826 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 7681900 is about 2771.6240726332. The cubic root of 7681900 is about 197.3132347540.

The spelling of 7681900 in words is "seven million, six hundred eighty-one thousand, nine hundred".