800769990 has 32 divisors (see below), whose sum is σ = 1983845376. Its totient is φ = 206650080.

The previous prime is 800769943. The next prime is 800770027. The reversal of 800769990 is 99967008.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 429592 + ... + 431451.

It is an arithmetic number, because the mean of its divisors is an integer number (61995168).

Almost surely, 2^800769990 is an apocalyptic number.

800769990 is an abundant number, since it is smaller than the sum of its proper divisors (1183075386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

800769990 is a wasteful number, since it uses less digits than its factorization.

800769990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861084.

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 800769990 is about 28297.8796025427. The cubic root of 800769990 is about 928.6155026361.

The spelling of 800769990 in words is "eight hundred million, seven hundred sixty-nine thousand, nine hundred ninety".