70399506 has 16 divisors (see below), whose sum is σ = 140881248. Its totient is φ = 23452800.

The previous prime is 70399487. The next prime is 70399591. The reversal of 70399506 is 60599307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18421 + ... + 21911.

It is an arithmetic number, because the mean of its divisors is an integer number (8805078).

Almost surely, 2^70399506 is an apocalyptic number.

70399506 is an abundant number, since it is smaller than the sum of its proper divisors (70481742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70399506 is a wasteful number, since it uses less digits than its factorization.

70399506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6857.

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 70399506 is about 8390.4413471521. The cubic root of 70399506 is about 412.9110803728.

The spelling of 70399506 in words is "seventy million, three hundred ninety-nine thousand, five hundred six".