99423953 has 2 divisors, whose sum is σ = 99423954. Its totient is φ = 99423952.

The previous prime is 99423923. The next prime is 99423991. The reversal of 99423953 is 35932499.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86341264 + 13082689 = 9292^2 + 3617^2 .

It is a cyclic number.

It is not a de Polignac number, because 99423953 - 2¹² = 99419857 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (99423923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49711976 + 49711977.

It is an arithmetic number, because the mean of its divisors is an integer number (49711977).

Almost surely, 2^99423953 is an apocalyptic number.

It is an amenable number.

99423953 is a deficient number, since it is larger than the sum of its proper divisors (1).

99423953 is an equidigital number, since it uses as much as digits as its factorization.

99423953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 262440, while the sum is 44.

The square root of 99423953 is about 9971.1560513313. The cubic root of 99423953 is about 463.2659087345.

The spelling of 99423953 in words is "ninety-nine million, four hundred twenty-three thousand, nine hundred fifty-three".