800940257 has 8 divisors (see below), whose sum is σ = 870926784. Its totient is φ = 732150288.

The previous prime is 800940253. The next prime is 800940277. The reversal of 800940257 is 752049008.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 800940257 - 2² = 800940253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (800940253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297743 + ... + 300420.

It is an arithmetic number, because the mean of its divisors is an integer number (108865848).

Almost surely, 2^800940257 is an apocalyptic number.

It is an amenable number.

800940257 is a deficient number, since it is larger than the sum of its proper divisors (69986527).

800940257 is a wasteful number, since it uses less digits than its factorization.

800940257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598279.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 800940257 is about 28300.8879189329. The cubic root of 800940257 is about 928.6813148638.

The spelling of 800940257 in words is "eight hundred million, nine hundred forty thousand, two hundred fifty-seven".