80686630 has 32 divisors (see below), whose sum is σ = 148780800. Its totient is φ = 31495392.

The previous prime is 80686609. The next prime is 80686657. The reversal of 80686630 is 3668608.

It is a self number, because there is not a number n which added to its sum of digits gives 80686630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95751 + ... + 96589.

It is an arithmetic number, because the mean of its divisors is an integer number (4649400).

Almost surely, 2^80686630 is an apocalyptic number.

80686630 is a deficient number, since it is larger than the sum of its proper divisors (68094170).

80686630 is a wasteful number, since it uses less digits than its factorization.

80686630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 80686630 is about 8982.5736846407. The cubic root of 80686630 is about 432.1161774585.

The spelling of 80686630 in words is "eighty million, six hundred eighty-six thousand, six hundred thirty".