80457489 has 16 divisors (see below), whose sum is σ = 136224640. Its totient is φ = 45975600.

The previous prime is 80457479. The next prime is 80457511. The reversal of 80457489 is 98475408.

It is not a de Polignac number, because 80457489 - 2⁹ = 80456977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80457409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212662 + ... + 213039.

It is an arithmetic number, because the mean of its divisors is an integer number (8514040).

Almost surely, 2^80457489 is an apocalyptic number.

It is an amenable number.

80457489 is a deficient number, since it is larger than the sum of its proper divisors (55767151).

80457489 is a wasteful number, since it uses less digits than its factorization.

80457489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425717 (or 425711 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 80457489 is about 8969.8098642056. The cubic root of 80457489 is about 431.7067357613.

The spelling of 80457489 in words is "eighty million, four hundred fifty-seven thousand, four hundred eighty-nine".