80257864 has 8 divisors (see below), whose sum is σ = 150483510. Its totient is φ = 40128928.

The previous prime is 80257861. The next prime is 80257889. The reversal of 80257864 is 46875208.

It can be written as a sum of positive squares in only one way, i.e., 80245764 + 12100 = 8958^2 + 110^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (80257861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5016109 + ... + 5016124.

Almost surely, 2^80257864 is an apocalyptic number.

It is an amenable number.

80257864 is a deficient number, since it is larger than the sum of its proper divisors (70225646).

80257864 is a wasteful number, since it uses less digits than its factorization.

80257864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10032239 (or 10032235 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 80257864 is about 8958.6753485100. The cubic root of 80257864 is about 431.3494007654.

The spelling of 80257864 in words is "eighty million, two hundred fifty-seven thousand, eight hundred sixty-four".