70321597 has 2 divisors, whose sum is σ = 70321598. Its totient is φ = 70321596.

The previous prime is 70321591. The next prime is 70321621. The reversal of 70321597 is 79512307.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51538041 + 18783556 = 7179^2 + 4334^2 .

It is a cyclic number.

It is not a de Polignac number, because 70321597 - 2¹¹ = 70319549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70321591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35160798 + 35160799.

It is an arithmetic number, because the mean of its divisors is an integer number (35160799).

Almost surely, 2^70321597 is an apocalyptic number.

It is an amenable number.

70321597 is a deficient number, since it is larger than the sum of its proper divisors (1).

70321597 is an equidigital number, since it uses as much as digits as its factorization.

70321597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 70321597 is about 8385.7973383573. The cubic root of 70321597 is about 412.7587054226.

The spelling of 70321597 in words is "seventy million, three hundred twenty-one thousand, five hundred ninety-seven".