801956798 has 4 divisors (see below), whose sum is σ = 1202935200. Its totient is φ = 400978398.

The previous prime is 801956789. The next prime is 801956803. The reversal of 801956798 is 897659108.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200489198 + ... + 200489201.

It is an arithmetic number, because the mean of its divisors is an integer number (300733800).

Almost surely, 2^801956798 is an apocalyptic number.

801956798 is a deficient number, since it is larger than the sum of its proper divisors (400978402).

801956798 is a wasteful number, since it uses less digits than its factorization.

801956798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400978401.

The product of its (nonzero) digits is 1088640, while the sum is 53.

The square root of 801956798 is about 28318.8417489134. The cubic root of 801956798 is about 929.0740380902.

The spelling of 801956798 in words is "eight hundred one million, nine hundred fifty-six thousand, seven hundred ninety-eight".