99988403 has 2 divisors, whose sum is σ = 99988404. Its totient is φ = 99988402.

The previous prime is 99988367. The next prime is 99988409. The reversal of 99988403 is 30488999.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99988403 is a prime.

It is not a weakly prime, because it can be changed into another prime (99988409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49994201 + 49994202.

It is an arithmetic number, because the mean of its divisors is an integer number (49994202).

Almost surely, 2^99988403 is an apocalyptic number.

99988403 is a deficient number, since it is larger than the sum of its proper divisors (1).

99988403 is an equidigital number, since it uses as much as digits as its factorization.

99988403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 99988403 is about 9999.4201331877. The cubic root of 99988403 is about 464.1409398324.

The spelling of 99988403 in words is "ninety-nine million, nine hundred eighty-eight thousand, four hundred three".