70894915 has 24 divisors (see below), whose sum is σ = 106580880. Its totient is φ = 44872128.

The previous prime is 70894907. The next prime is 70894939. The reversal of 70894915 is 51949807.

It is not a de Polignac number, because 70894915 - 2³ = 70894907 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7945 + ... + 14314.

It is an arithmetic number, because the mean of its divisors is an integer number (4440870).

Almost surely, 2^70894915 is an apocalyptic number.

70894915 is a deficient number, since it is larger than the sum of its proper divisors (35685965).

70894915 is a wasteful number, since it uses less digits than its factorization.

70894915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22291 (or 22284 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 70894915 is about 8419.9118166404. The cubic root of 70894915 is about 413.8773840089.

It can be divided in two parts, 708949 and 15, that added together give a square (708964 = 842²).

The spelling of 70894915 in words is "seventy million, eight hundred ninety-four thousand, nine hundred fifteen".