70699613 has 2 divisors, whose sum is σ = 70699614. Its totient is φ = 70699612.

The previous prime is 70699579. The next prime is 70699639. The reversal of 70699613 is 31699607.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54715609 + 15984004 = 7397^2 + 3998^2 .

It is an emirp because it is prime and its reverse (31699607) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70699613 - 2⁸ = 70699357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70699913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35349806 + 35349807.

It is an arithmetic number, because the mean of its divisors is an integer number (35349807).

Almost surely, 2^70699613 is an apocalyptic number.

It is an amenable number.

70699613 is a deficient number, since it is larger than the sum of its proper divisors (1).

70699613 is an equidigital number, since it uses as much as digits as its factorization.

70699613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 70699613 is about 8408.3061909043. The cubic root of 70699613 is about 413.4969833393.

The spelling of 70699613 in words is "seventy million, six hundred ninety-nine thousand, six hundred thirteen".