99503401 has 2 divisors, whose sum is σ = 99503402. Its totient is φ = 99503400.

The previous prime is 99503389. The next prime is 99503479. The reversal of 99503401 is 10430599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87909376 + 11594025 = 9376^2 + 3405^2 .

It is an emirp because it is prime and its reverse (10430599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99503401 - 2²⁵ = 65948969 is a prime.

It is not a weakly prime, because it can be changed into another prime (99503491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49751700 + 49751701.

It is an arithmetic number, because the mean of its divisors is an integer number (49751701).

Almost surely, 2^99503401 is an apocalyptic number.

It is an amenable number.

99503401 is a deficient number, since it is larger than the sum of its proper divisors (1).

99503401 is an equidigital number, since it uses as much as digits as its factorization.

99503401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 99503401 is about 9975.1391468992. The cubic root of 99503401 is about 463.3892718665.

The spelling of 99503401 in words is "ninety-nine million, five hundred three thousand, four hundred one".