800748561 has 16 divisors (see below), whose sum is σ = 1097486208. Its totient is φ = 518947200.

The previous prime is 800748527. The next prime is 800748583. The reversal of 800748561 is 165847008.

It is not a de Polignac number, because 800748561 - 2⁶ = 800748497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (800748511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161956 + ... + 166826.

It is an arithmetic number, because the mean of its divisors is an integer number (68592888).

Almost surely, 2^800748561 is an apocalyptic number.

It is an amenable number.

800748561 is a deficient number, since it is larger than the sum of its proper divisors (296737647).

800748561 is a wasteful number, since it uses less digits than its factorization.

800748561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6392.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 800748561 is about 28297.5009673999. The cubic root of 800748561 is about 928.6072191592.

The spelling of 800748561 in words is "eight hundred million, seven hundred forty-eight thousand, five hundred sixty-one".