70009913 has 2 divisors, whose sum is σ = 70009914. Its totient is φ = 70009912.

The previous prime is 70009909. The next prime is 70009939. The reversal of 70009913 is 31990007.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63234304 + 6775609 = 7952^2 + 2603^2 .

It is a cyclic number.

It is not a de Polignac number, because 70009913 - 2² = 70009909 is a prime.

It is not a weakly prime, because it can be changed into another prime (70009903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35004956 + 35004957.

It is an arithmetic number, because the mean of its divisors is an integer number (35004957).

Almost surely, 2^70009913 is an apocalyptic number.

It is an amenable number.

70009913 is a deficient number, since it is larger than the sum of its proper divisors (1).

70009913 is an equidigital number, since it uses as much as digits as its factorization.

70009913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 70009913 is about 8367.1926594288. The cubic root of 70009913 is about 412.1479834917.

The spelling of 70009913 in words is "seventy million, nine thousand, nine hundred thirteen".