70718413 has 4 divisors (see below), whose sum is σ = 70751548. Its totient is φ = 70685280.

The previous prime is 70718411. The next prime is 70718423. The reversal of 70718413 is 31481707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31481707 = 109 ⋅288823.

It can be written as a sum of positive squares in 2 ways, for example, as 39212644 + 31505769 = 6262^2 + 5613^2 .

It is a cyclic number.

It is not a de Polignac number, because 70718413 - 2¹ = 70718411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70718411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13128 + ... + 17713.

It is an arithmetic number, because the mean of its divisors is an integer number (17687887).

Almost surely, 2^70718413 is an apocalyptic number.

It is an amenable number.

70718413 is a deficient number, since it is larger than the sum of its proper divisors (33135).

70718413 is a wasteful number, since it uses less digits than its factorization.

70718413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33134.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 70718413 is about 8409.4240587569. The cubic root of 70718413 is about 413.5336316038.

The spelling of 70718413 in words is "seventy million, seven hundred eighteen thousand, four hundred thirteen".