872615378 has 8 divisors (see below), whose sum is σ = 1310515968. Its totient is φ = 435776724.

The previous prime is 872615351. The next prime is 872615407. The reversal of 872615378 is 873516278.

It is a happy number.

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

It is a super-2 number, since 2×872615378² = 1522915195844165768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263426 + ... + 266717.

It is an arithmetic number, because the mean of its divisors is an integer number (163814496).

Almost surely, 2^872615378 is an apocalyptic number.

872615378 is a deficient number, since it is larger than the sum of its proper divisors (437900590).

872615378 is a wasteful number, since it uses less digits than its factorization.

872615378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530968.

The product of its digits is 564480, while the sum is 47.

The square root of 872615378 is about 29540.0639471210. The cubic root of 872615378 is about 955.5959212972.

The spelling of 872615378 in words is "eight hundred seventy-two million, six hundred fifteen thousand, three hundred seventy-eight".