869378774 has 16 divisors (see below), whose sum is σ = 1423411920. Its totient is φ = 394952160.

The previous prime is 869378767. The next prime is 869378831. The reversal of 869378774 is 477873968.

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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33392 + ... + 53420.

It is an arithmetic number, because the mean of its divisors is an integer number (88963245).

Almost surely, 2^869378774 is an apocalyptic number.

869378774 is a deficient number, since it is larger than the sum of its proper divisors (554033146).

869378774 is a wasteful number, since it uses less digits than its factorization.

869378774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22015.

The product of its digits is 14224896, while the sum is 59.

The square root of 869378774 is about 29485.2297600002. The cubic root of 869378774 is about 954.4129956223.

The spelling of 869378774 in words is "eight hundred sixty-nine million, three hundred seventy-eight thousand, seven hundred seventy-four".