70394523 has 4 divisors (see below), whose sum is σ = 93859368. Its totient is φ = 46929680.

The previous prime is 70394509. The next prime is 70394531. The reversal of 70394523 is 32549307.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70394523 - 2⁵ = 70394491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70394503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11732418 + ... + 11732423.

It is an arithmetic number, because the mean of its divisors is an integer number (23464842).

Almost surely, 2^70394523 is an apocalyptic number.

70394523 is a deficient number, since it is larger than the sum of its proper divisors (23464845).

70394523 is a wasteful number, since it uses less digits than its factorization.

70394523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23464844.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 70394523 is about 8390.1443968504. The cubic root of 70394523 is about 412.9013379537.

The spelling of 70394523 in words is "seventy million, three hundred ninety-four thousand, five hundred twenty-three".