70807399 has 4 divisors (see below), whose sum is σ = 76254136. Its totient is φ = 65360664.

The previous prime is 70807391. The next prime is 70807403. The reversal of 70807399 is 99370807.

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

It is a cyclic number.

It is not a de Polignac number, because 70807399 - 2³ = 70807391 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 (70807391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2723349 + ... + 2723374.

It is an arithmetic number, because the mean of its divisors is an integer number (19063534).

Almost surely, 2^70807399 is an apocalyptic number.

70807399 is a deficient number, since it is larger than the sum of its proper divisors (5446737).

70807399 is a wasteful number, since it uses less digits than its factorization.

70807399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5446736.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 70807399 is about 8414.7132452627. The cubic root of 70807399 is about 413.7070106818.

The spelling of 70807399 in words is "seventy million, eight hundred seven thousand, three hundred ninety-nine".