800425989 has 16 divisors (see below), whose sum is σ = 1293618240. Its totient is φ = 485106480.

The previous prime is 800425973. The next prime is 800425993. The reversal of 800425989 is 989524008.

It is not a de Polignac number, because 800425989 - 2⁴ = 800425973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800425289) 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, 1347222 + ... + 1347815.

It is an arithmetic number, because the mean of its divisors is an integer number (80851140).

Almost surely, 2^800425989 is an apocalyptic number.

It is an amenable number.

800425989 is a deficient number, since it is larger than the sum of its proper divisors (493192251).

800425989 is a wasteful number, since it uses less digits than its factorization.

800425989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695057 (or 2695051 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 800425989 is about 28291.8007380230. The cubic root of 800425989 is about 928.4825096337.

The spelling of 800425989 in words is "eight hundred million, four hundred twenty-five thousand, nine hundred eighty-nine".