80642597 has 4 divisors (see below), whose sum is σ = 92162976. Its totient is φ = 69122220.

The previous prime is 80642567. The next prime is 80642603. The reversal of 80642597 is 79524608.

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 80642597 - 2¹⁶ = 80577061 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 (80642537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5760179 + ... + 5760192.

It is an arithmetic number, because the mean of its divisors is an integer number (23040744).

Almost surely, 2^80642597 is an apocalyptic number.

It is an amenable number.

80642597 is a deficient number, since it is larger than the sum of its proper divisors (11520379).

80642597 is a wasteful number, since it uses less digits than its factorization.

80642597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11520378.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 80642597 is about 8980.1223265610. The cubic root of 80642597 is about 432.0375571057.

The spelling of 80642597 in words is "eighty million, six hundred forty-two thousand, five hundred ninety-seven".