80281957 has 4 divisors (see below), whose sum is σ = 91750816. Its totient is φ = 68813100.

The previous prime is 80281951. The next prime is 80281961. The reversal of 80281957 is 75918208.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80281957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80281951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5734419 + ... + 5734432.

It is an arithmetic number, because the mean of its divisors is an integer number (22937704).

Almost surely, 2^80281957 is an apocalyptic number.

It is an amenable number.

80281957 is a deficient number, since it is larger than the sum of its proper divisors (11468859).

80281957 is a wasteful number, since it uses less digits than its factorization.

80281957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11468858.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 80281957 is about 8960.0199218529. The cubic root of 80281957 is about 431.3925594078.

The spelling of 80281957 in words is "eighty million, two hundred eighty-one thousand, nine hundred fifty-seven".