70421607 has 12 divisors (see below), whose sum is σ = 106143024. Its totient is φ = 44906400.

The previous prime is 70421579. The next prime is 70421629. The reversal of 70421607 is 70612407.

It is not a de Polignac number, because 70421607 - 2¹⁵ = 70388839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70421107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169894 + ... + 170307.

It is an arithmetic number, because the mean of its divisors is an integer number (8845252).

Almost surely, 2^70421607 is an apocalyptic number.

70421607 is a deficient number, since it is larger than the sum of its proper divisors (35721417).

70421607 is a wasteful number, since it uses less digits than its factorization.

70421607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340230 (or 340227 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 70421607 is about 8391.7582782156. The cubic root of 70421607 is about 412.9542851882.

It can be divided in two parts, 7042 and 1607, that added together give a square (8649 = 93²).

The spelling of 70421607 in words is "seventy million, four hundred twenty-one thousand, six hundred seven".