80726964 has 24 divisors (see below), whose sum is σ = 196553280. Its totient is φ = 25738944.

The previous prime is 80726963. The next prime is 80726969. The reversal of 80726964 is 46962708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80726963) 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, 145969 + ... + 146520.

It is an arithmetic number, because the mean of its divisors is an integer number (8189720).

Almost surely, 2^80726964 is an apocalyptic number.

It is an amenable number.

80726964 is an abundant number, since it is smaller than the sum of its proper divisors (115826316).

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

80726964 is a wasteful number, since it uses less digits than its factorization.

80726964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292519 (or 292517 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 80726964 is about 8984.8185290522. The cubic root of 80726964 is about 432.1881681983.

The spelling of 80726964 in words is "eighty million, seven hundred twenty-six thousand, nine hundred sixty-four".