70716739 has 2 divisors, whose sum is σ = 70716740. Its totient is φ = 70716738.

The previous prime is 70716721. The next prime is 70716749. The reversal of 70716739 is 93761707.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70716739 - 2⁹ = 70716227 is a prime.

It is not a weakly prime, because it can be changed into another prime (70716749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35358369 + 35358370.

It is an arithmetic number, because the mean of its divisors is an integer number (35358370).

Almost surely, 2^70716739 is an apocalyptic number.

70716739 is a deficient number, since it is larger than the sum of its proper divisors (1).

70716739 is an equidigital number, since it uses as much as digits as its factorization.

70716739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55566, while the sum is 40.

The square root of 70716739 is about 8409.3245269760. The cubic root of 70716739 is about 413.5303686122.

The spelling of 70716739 in words is "seventy million, seven hundred sixteen thousand, seven hundred thirty-nine".