70804931 has 2 divisors, whose sum is σ = 70804932. Its totient is φ = 70804930.

The previous prime is 70804907. The next prime is 70804933. The reversal of 70804931 is 13940807.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70804931 - 2²⁶ = 3696067 is a prime.

It is a super-2 number, since 2×70804931² = 10026676507829522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 70804933, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70804933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35402465 + 35402466.

It is an arithmetic number, because the mean of its divisors is an integer number (35402466).

Almost surely, 2^70804931 is an apocalyptic number.

70804931 is a deficient number, since it is larger than the sum of its proper divisors (1).

70804931 is an equidigital number, since it uses as much as digits as its factorization.

70804931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 70804931 is about 8414.5665960880. The cubic root of 70804931 is about 413.7022040242.

The spelling of 70804931 in words is "seventy million, eight hundred four thousand, nine hundred thirty-one".