70847385 has 48 divisors (see below), whose sum is σ = 135136512. Its totient is φ = 31584000.

The previous prime is 70847363. The next prime is 70847393. The reversal of 70847385 is 58374807.

It is not a de Polignac number, because 70847385 - 2⁶ = 70847321 is a prime.

It is a super-2 number, since 2×70847385² = 10038703922676450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28960 + ... + 31310.

It is an arithmetic number, because the mean of its divisors is an integer number (2815344).

Almost surely, 2^70847385 is an apocalyptic number.

It is an amenable number.

70847385 is a deficient number, since it is larger than the sum of its proper divisors (64289127).

70847385 is a wasteful number, since it uses less digits than its factorization.

70847385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414 (or 2407 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 70847385 is about 8417.0888672985. The cubic root of 70847385 is about 413.7848715448.

The spelling of 70847385 in words is "seventy million, eight hundred forty-seven thousand, three hundred eighty-five".