70396251 has 4 divisors (see below), whose sum is σ = 93861672. Its totient is φ = 46930832.

The previous prime is 70396231. The next prime is 70396259. The reversal of 70396251 is 15269307.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15269307 = 3 ⋅5089769.

It is a cyclic number.

It is not a de Polignac number, because 70396251 - 2⁵ = 70396219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70396259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11732706 + ... + 11732711.

It is an arithmetic number, because the mean of its divisors is an integer number (23465418).

Almost surely, 2^70396251 is an apocalyptic number.

70396251 is a deficient number, since it is larger than the sum of its proper divisors (23465421).

70396251 is a wasteful number, since it uses less digits than its factorization.

70396251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23465420.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 70396251 is about 8390.2473741839. The cubic root of 70396251 is about 412.9047164726.

The spelling of 70396251 in words is "seventy million, three hundred ninety-six thousand, two hundred fifty-one".