39700723 has 2 divisors, whose sum is σ = 39700724. Its totient is φ = 39700722.

The previous prime is 39700673. The next prime is 39700753. The reversal of 39700723 is 32700793.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39700723 - 2⁹ = 39700211 is a prime.

It is a super-2 number, since 2×39700723² = 3152294813445458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (39700753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19850361 + 19850362.

It is an arithmetic number, because the mean of its divisors is an integer number (19850362).

Almost surely, 2^39700723 is an apocalyptic number.

39700723 is a deficient number, since it is larger than the sum of its proper divisors (1).

39700723 is an equidigital number, since it uses as much as digits as its factorization.

39700723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7938, while the sum is 31.

The square root of 39700723 is about 6300.8509742732. The cubic root of 39700723 is about 341.1401258170.

The spelling of 39700723 in words is "thirty-nine million, seven hundred thousand, seven hundred twenty-three".