70713791 has 2 divisors, whose sum is σ = 70713792. Its totient is φ = 70713790.

The previous prime is 70713787. The next prime is 70713817. The reversal of 70713791 is 19731707.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70713791 - 2² = 70713787 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70713751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35356895 + 35356896.

It is an arithmetic number, because the mean of its divisors is an integer number (35356896).

Almost surely, 2^70713791 is an apocalyptic number.

70713791 is a deficient number, since it is larger than the sum of its proper divisors (1).

70713791 is an equidigital number, since it uses as much as digits as its factorization.

70713791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9261, while the sum is 35.

The square root of 70713791 is about 8409.1492435323. The cubic root of 70713791 is about 413.5246221912.

The spelling of 70713791 in words is "seventy million, seven hundred thirteen thousand, seven hundred ninety-one".