870378715 has 16 divisors (see below), whose sum is σ = 1050353568. Its totient is φ = 692384256.

The previous prime is 870378703. The next prime is 870378721. The reversal of 870378715 is 517873078.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 870378715 - 2¹⁵ = 870345947 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1105552 + ... + 1106338.

It is an arithmetic number, because the mean of its divisors is an integer number (65647098).

Almost surely, 2^870378715 is an apocalyptic number.

870378715 is a deficient number, since it is larger than the sum of its proper divisors (179974853).

870378715 is a wasteful number, since it uses less digits than its factorization.

870378715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758.

The product of its (nonzero) digits is 329280, while the sum is 46.

The square root of 870378715 is about 29502.1815295073. The cubic root of 870378715 is about 954.7787706078.

The spelling of 870378715 in words is "eight hundred seventy million, three hundred seventy-eight thousand, seven hundred fifteen".