70009619 has 2 divisors, whose sum is σ = 70009620. Its totient is φ = 70009618.

The previous prime is 70009609. The next prime is 70009669. The reversal of 70009619 is 91690007.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70009619 - 2⁸ = 70009363 is a prime.

It is a super-2 number, since 2×70009619² = 9802693505050322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70009609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35004809 + 35004810.

It is an arithmetic number, because the mean of its divisors is an integer number (35004810).

Almost surely, 2^70009619 is an apocalyptic number.

70009619 is a deficient number, since it is larger than the sum of its proper divisors (1).

70009619 is an equidigital number, since it uses as much as digits as its factorization.

70009619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 70009619 is about 8367.1750907938. The cubic root of 70009619 is about 412.1474065654.

The spelling of 70009619 in words is "seventy million, nine thousand, six hundred nineteen".