70164238 has 4 divisors (see below), whose sum is σ = 105246360. Its totient is φ = 35082118.

The previous prime is 70164233. The next prime is 70164239. The reversal of 70164238 is 83246107.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70164233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17541058 + ... + 17541061.

It is an arithmetic number, because the mean of its divisors is an integer number (26311590).

Almost surely, 2^70164238 is an apocalyptic number.

70164238 is a deficient number, since it is larger than the sum of its proper divisors (35082122).

70164238 is a wasteful number, since it uses less digits than its factorization.

70164238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35082121.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 70164238 is about 8376.4096127159. The cubic root of 70164238 is about 412.4505980629.

The spelling of 70164238 in words is "seventy million, one hundred sixty-four thousand, two hundred thirty-eight".