80742885 has 8 divisors (see below), whose sum is σ = 129188640. Its totient is φ = 43062864.

The previous prime is 80742859. The next prime is 80742943. The reversal of 80742885 is 58824708.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80742885 - 2⁵ = 80742853 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2691415 + ... + 2691444.

It is an arithmetic number, because the mean of its divisors is an integer number (16148580).

Almost surely, 2^80742885 is an apocalyptic number.

It is an amenable number.

80742885 is a deficient number, since it is larger than the sum of its proper divisors (48445755).

80742885 is a wasteful number, since it uses less digits than its factorization.

80742885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5382867.

The product of its (nonzero) digits is 143360, while the sum is 42.

The square root of 80742885 is about 8985.7044798947. The cubic root of 80742885 is about 432.2165784311.

The spelling of 80742885 in words is "eighty million, seven hundred forty-two thousand, eight hundred eighty-five".