70623621 has 12 divisors (see below), whose sum is σ = 103242048. Its totient is φ = 46514664.

The previous prime is 70623601. The next prime is 70623677. The reversal of 70623621 is 12632607.

It is a happy number.

It is not a de Polignac number, because 70623621 - 2⁷ = 70623493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70623601) 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 11 ways as a sum of consecutive naturals, for example, 46525 + ... + 48018.

It is an arithmetic number, because the mean of its divisors is an integer number (8603504).

Almost surely, 2^70623621 is an apocalyptic number.

It is an amenable number.

70623621 is a deficient number, since it is larger than the sum of its proper divisors (32618427).

70623621 is a wasteful number, since it uses less digits than its factorization.

70623621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94632 (or 94629 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 70623621 is about 8403.7861110335. The cubic root of 70623621 is about 413.3487801344.

The spelling of 70623621 in words is "seventy million, six hundred twenty-three thousand, six hundred twenty-one".