70340013 has 6 divisors (see below), whose sum is σ = 101602254. Its totient is φ = 46893336.

The previous prime is 70339979. The next prime is 70340021. The reversal of 70340013 is 31004307.

It can be written as a sum of positive squares in only one way, i.e., 62062884 + 8277129 = 7878^2 + 2877^2 .

It is not a de Polignac number, because 70340013 - 2⁶ = 70339949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70340813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3907770 + ... + 3907787.

It is an arithmetic number, because the mean of its divisors is an integer number (16933709).

Almost surely, 2^70340013 is an apocalyptic number.

It is an amenable number.

70340013 is a deficient number, since it is larger than the sum of its proper divisors (31262241).

70340013 is a wasteful number, since it uses less digits than its factorization.

70340013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7815563 (or 7815560 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 70340013 is about 8386.8953135234. The cubic root of 70340013 is about 412.7947337135.

The spelling of 70340013 in words is "seventy million, three hundred forty thousand, thirteen".