800545978 has 8 divisors (see below), whose sum is σ = 1209985920. Its totient is φ = 397217340.

The previous prime is 800545969. The next prime is 800546017. The reversal of 800545978 is 879545008.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1527498 + ... + 1528021.

It is an arithmetic number, because the mean of its divisors is an integer number (151248240).

Almost surely, 2^800545978 is an apocalyptic number.

800545978 is a deficient number, since it is larger than the sum of its proper divisors (409439942).

800545978 is a wasteful number, since it uses less digits than its factorization.

800545978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055652.

The product of its (nonzero) digits is 403200, while the sum is 46.

The square root of 800545978 is about 28293.9212199370. The cubic root of 800545978 is about 928.5289024807.

The spelling of 800545978 in words is "eight hundred million, five hundred forty-five thousand, nine hundred seventy-eight".