70164421 has 8 divisors (see below), whose sum is σ = 74597760. Its totient is φ = 65846352.

The previous prime is 70164383. The next prime is 70164431. The reversal of 70164421 is 12446107.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70164421 - 2⁷ = 70164293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70164431) 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, 27561 + ... + 29998.

It is an arithmetic number, because the mean of its divisors is an integer number (9324720).

Almost surely, 2^70164421 is an apocalyptic number.

It is an amenable number.

70164421 is a deficient number, since it is larger than the sum of its proper divisors (4433339).

70164421 is a wasteful number, since it uses less digits than its factorization.

70164421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57635.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 70164421 is about 8376.4205362434. The cubic root of 70164421 is about 412.4509566425.

The spelling of 70164421 in words is "seventy million, one hundred sixty-four thousand, four hundred twenty-one".