70398706 has 16 divisors (see below), whose sum is σ = 124577280. Its totient is φ = 29197440.

The previous prime is 70398703. The next prime is 70398761. The reversal of 70398706 is 60789307.

It is not an unprimeable number, because it can be changed into a prime (70398703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80671 + ... + 81538.

It is an arithmetic number, because the mean of its divisors is an integer number (7786080).

Almost surely, 2^70398706 is an apocalyptic number.

70398706 is a deficient number, since it is larger than the sum of its proper divisors (54178574).

70398706 is a wasteful number, since it uses less digits than its factorization.

70398706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162249.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 70398706 is about 8390.3936737200. The cubic root of 70398706 is about 412.9095162987.

The spelling of 70398706 in words is "seventy million, three hundred ninety-eight thousand, seven hundred six".