70808957 has 2 divisors, whose sum is σ = 70808958. Its totient is φ = 70808956.

The previous prime is 70808921. The next prime is 70808971. The reversal of 70808957 is 75980807.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49084036 + 21724921 = 7006^2 + 4661^2 .

It is a cyclic number.

It is not a de Polignac number, because 70808957 - 2⁸ = 70808701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70808987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35404478 + 35404479.

It is an arithmetic number, because the mean of its divisors is an integer number (35404479).

Almost surely, 2^70808957 is an apocalyptic number.

It is an amenable number.

70808957 is a deficient number, since it is larger than the sum of its proper divisors (1).

70808957 is an equidigital number, since it uses as much as digits as its factorization.

70808957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 44.

The square root of 70808957 is about 8414.8058206949. The cubic root of 70808957 is about 413.7100449730.

The spelling of 70808957 in words is "seventy million, eight hundred eight thousand, nine hundred fifty-seven".