70990407 has 6 divisors (see below), whose sum is σ = 102541712. Its totient is φ = 47326932.

The previous prime is 70990363. The next prime is 70990411. The reversal of 70990407 is 70409907.

It is not a de Polignac number, because 70990407 - 2⁶ = 70990343 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 (70990607) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3943903 + ... + 3943920.

Almost surely, 2^70990407 is an apocalyptic number.

70990407 is a deficient number, since it is larger than the sum of its proper divisors (31551305).

70990407 is a wasteful number, since it uses less digits than its factorization.

70990407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7887829 (or 7887826 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 70990407 is about 8425.5805141248. The cubic root of 70990407 is about 414.0631248701.

The spelling of 70990407 in words is "seventy million, nine hundred ninety thousand, four hundred seven".