70750657 has 2 divisors, whose sum is σ = 70750658. Its totient is φ = 70750656.

The previous prime is 70750613. The next prime is 70750681. The reversal of 70750657 is 75605707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69288976 + 1461681 = 8324^2 + 1209^2 .

It is a cyclic number.

It is not a de Polignac number, because 70750657 - 2⁷ = 70750529 is a prime.

It is not a weakly prime, because it can be changed into another prime (70750157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35375328 + 35375329.

It is an arithmetic number, because the mean of its divisors is an integer number (35375329).

Almost surely, 2^70750657 is an apocalyptic number.

It is an amenable number.

70750657 is a deficient number, since it is larger than the sum of its proper divisors (1).

70750657 is an equidigital number, since it uses as much as digits as its factorization.

70750657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51450, while the sum is 37.

The square root of 70750657 is about 8411.3409751359. The cubic root of 70750657 is about 413.5964721561.

The spelling of 70750657 in words is "seventy million, seven hundred fifty thousand, six hundred fifty-seven".