70204657 has 2 divisors, whose sum is σ = 70204658. Its totient is φ = 70204656.

The previous prime is 70204649. The next prime is 70204661. The reversal of 70204657 is 75640207.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69872881 + 331776 = 8359^2 + 576^2 .

It is a cyclic number.

It is not a de Polignac number, because 70204657 - 2³ = 70204649 is a prime.

It is not a weakly prime, because it can be changed into another prime (70201657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35102328 + 35102329.

It is an arithmetic number, because the mean of its divisors is an integer number (35102329).

Almost surely, 2^70204657 is an apocalyptic number.

It is an amenable number.

70204657 is a deficient number, since it is larger than the sum of its proper divisors (1).

70204657 is an equidigital number, since it uses as much as digits as its factorization.

70204657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 70204657 is about 8378.8219338998. The cubic root of 70204657 is about 412.5297819942.

The spelling of 70204657 in words is "seventy million, two hundred four thousand, six hundred fifty-seven".