23720629 has 2 divisors, whose sum is σ = 23720630. Its totient is φ = 23720628.

The previous prime is 23720617. The next prime is 23720633. The reversal of 23720629 is 92602732.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22515025 + 1205604 = 4745^2 + 1098^2 .

It is a cyclic number.

It is not a de Polignac number, because 23720629 - 2⁵ = 23720597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23720629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23720639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11860314 + 11860315.

It is an arithmetic number, because the mean of its divisors is an integer number (11860315).

Almost surely, 2^23720629 is an apocalyptic number.

It is an amenable number.

23720629 is a deficient number, since it is larger than the sum of its proper divisors (1).

23720629 is an equidigital number, since it uses as much as digits as its factorization.

23720629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 23720629 is about 4870.3828391616. The cubic root of 23720629 is about 287.3263132396.

The spelling of 23720629 in words is "twenty-three million, seven hundred twenty thousand, six hundred twenty-nine".