70699579 has 2 divisors, whose sum is σ = 70699580. Its totient is φ = 70699578.

The previous prime is 70699571. The next prime is 70699613. The reversal of 70699579 is 97599607.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70699579 - 2³ = 70699571 is a prime.

It is not a weakly prime, because it can be changed into another prime (70699571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35349789 + 35349790.

It is an arithmetic number, because the mean of its divisors is an integer number (35349790).

Almost surely, 2^70699579 is an apocalyptic number.

70699579 is a deficient number, since it is larger than the sum of its proper divisors (1).

70699579 is an equidigital number, since it uses as much as digits as its factorization.

70699579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1071630, while the sum is 52.

The square root of 70699579 is about 8408.3041690938. The cubic root of 70699579 is about 413.4969170547.

The spelling of 70699579 in words is "seventy million, six hundred ninety-nine thousand, five hundred seventy-nine".