80620859 has 4 divisors (see below), whose sum is σ = 87950040. Its totient is φ = 73291680.

The previous prime is 80620849. The next prime is 80620861. The reversal of 80620859 is 95802608.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 80620859 - 2²⁴ = 63843643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80620849) 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, 3664574 + ... + 3664595.

It is an arithmetic number, because the mean of its divisors is an integer number (21987510).

Almost surely, 2^80620859 is an apocalyptic number.

80620859 is a deficient number, since it is larger than the sum of its proper divisors (7329181).

80620859 is a wasteful number, since it uses less digits than its factorization.

80620859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7329180.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 80620859 is about 8978.9119051253. The cubic root of 80620859 is about 431.9987336354.

The spelling of 80620859 in words is "eighty million, six hundred twenty thousand, eight hundred fifty-nine".