80727497 has 4 divisors (see below), whose sum is σ = 81864576. Its totient is φ = 79590420.

The previous prime is 80727463. The next prime is 80727499. The reversal of 80727497 is 79472708.

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 not a de Polignac number, because 80727497 - 2⁶ = 80727433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80727499) 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, 568433 + ... + 568574.

It is an arithmetic number, because the mean of its divisors is an integer number (20466144).

Almost surely, 2^80727497 is an apocalyptic number.

It is an amenable number.

80727497 is a deficient number, since it is larger than the sum of its proper divisors (1137079).

80727497 is a wasteful number, since it uses less digits than its factorization.

80727497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137078.

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 80727497 is about 8984.8481901477. The cubic root of 80727497 is about 432.1891193707.

The spelling of 80727497 in words is "eighty million, seven hundred twenty-seven thousand, four hundred ninety-seven".