869378072 has 24 divisors (see below), whose sum is σ = 1636623300. Its totient is φ = 432951024.

The previous prime is 869378057. The next prime is 869378093. The reversal of 869378072 is 270873968.

It is a happy number.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 869378072.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1404179 + ... + 1404797.

Almost surely, 2^869378072 is an apocalyptic number.

It is an amenable number.

869378072 is a deficient number, since it is larger than the sum of its proper divisors (767245228).

869378072 is an equidigital number, since it uses as much as digits as its factorization.

869378072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

The square root of 869378072 is about 29485.2178557324. The cubic root of 869378072 is about 954.4127387346.

The spelling of 869378072 in words is "eight hundred sixty-nine million, three hundred seventy-eight thousand, seventy-two".