23070709 has 2 divisors, whose sum is σ = 23070710. Its totient is φ = 23070708.

The previous prime is 23070703. The next prime is 23070779. The reversal of 23070709 is 90707032.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20729809 + 2340900 = 4553^2 + 1530^2 .

It is a cyclic number.

It is not a de Polignac number, because 23070709 - 2¹⁹ = 22546421 is a prime.

It is a super-2 number, since 2×23070709² = 1064515227525362, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23070703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11535354 + 11535355.

It is an arithmetic number, because the mean of its divisors is an integer number (11535355).

Almost surely, 2^23070709 is an apocalyptic number.

It is an amenable number.

23070709 is a deficient number, since it is larger than the sum of its proper divisors (1).

23070709 is an equidigital number, since it uses as much as digits as its factorization.

23070709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646, while the sum is 28.

The square root of 23070709 is about 4803.1977889735. The cubic root of 23070709 is about 284.6778302663.

The spelling of 23070709 in words is "twenty-three million, seventy thousand, seven hundred nine".