70413309 has 12 divisors (see below), whose sum is σ = 103627836. Its totient is φ = 46056192.

The previous prime is 70413289. The next prime is 70413341. The reversal of 70413309 is 90331407.

It can be written as a sum of positive squares in 2 ways, for example, as 55086084 + 15327225 = 7422^2 + 3915^2 .

It is not a de Polignac number, because 70413309 - 2⁸ = 70413053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70413349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73332 + ... + 74285.

It is an arithmetic number, because the mean of its divisors is an integer number (8635653).

Almost surely, 2^70413309 is an apocalyptic number.

It is an amenable number.

70413309 is a deficient number, since it is larger than the sum of its proper divisors (33214527).

70413309 is a wasteful number, since it uses less digits than its factorization.

70413309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147676 (or 147673 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 70413309 is about 8391.2638499811. The cubic root of 70413309 is about 412.9380646492.

The spelling of 70413309 in words is "seventy million, four hundred thirteen thousand, three hundred nine".