18952799 has 2 divisors, whose sum is σ = 18952800. Its totient is φ = 18952798.

The previous prime is 18952777. The next prime is 18952819. The reversal of 18952799 is 99725981.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18952799 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18912799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9476399 + 9476400.

It is an arithmetic number, because the mean of its divisors is an integer number (9476400).

Almost surely, 2^18952799 is an apocalyptic number.

18952799 is a deficient number, since it is larger than the sum of its proper divisors (1).

18952799 is an equidigital number, since it uses as much as digits as its factorization.

18952799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 50.

The square root of 18952799 is about 4353.4812506774. The cubic root of 18952799 is about 266.6190145756.

The spelling of 18952799 in words is "eighteen million, nine hundred fifty-two thousand, seven hundred ninety-nine".