80641764 has 48 divisors (see below), whose sum is σ = 238940800. Its totient is φ = 23040288.

The previous prime is 80641751. The next prime is 80641783. The reversal of 80641764 is 46714608.

80641764 is a `hidden beast` number, since 8 + 0 + 641 + 7 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 52579 + ... + 54090.

Almost surely, 2^80641764 is an apocalyptic number.

80641764 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

80641764 is an abundant number, since it is smaller than the sum of its proper divisors (158299036).

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

80641764 is a wasteful number, since it uses less digits than its factorization.

80641764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106689 (or 106681 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 80641764 is about 8980.0759462267. The cubic root of 80641764 is about 432.0360695192.

The spelling of 80641764 in words is "eighty million, six hundred forty-one thousand, seven hundred sixty-four".