70712723 has 2 divisors, whose sum is σ = 70712724. Its totient is φ = 70712722.

The previous prime is 70712669. The next prime is 70712729. The reversal of 70712723 is 32721707.

It is a strong prime.

It is an emirp because it is prime and its reverse (32721707) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70712723 is a prime.

It is not a weakly prime, because it can be changed into another prime (70712729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35356361 + 35356362.

It is an arithmetic number, because the mean of its divisors is an integer number (35356362).

Almost surely, 2^70712723 is an apocalyptic number.

70712723 is a deficient number, since it is larger than the sum of its proper divisors (1).

70712723 is an equidigital number, since it uses as much as digits as its factorization.

70712723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4116, while the sum is 29.

The square root of 70712723 is about 8409.0857410304. The cubic root of 70712723 is about 413.5225403411.

It can be divided in two parts, 707 and 12723, that multiplied together give a triangular number (8995161 = T₄₂₄₁).

The spelling of 70712723 in words is "seventy million, seven hundred twelve thousand, seven hundred twenty-three".