99999453 has 16 divisors (see below), whose sum is σ = 139881600. Its totient is φ = 63456960.

The previous prime is 99999439. The next prime is 99999481. The reversal of 99999453 is 35499999.

It is not a de Polignac number, because 99999453 - 2⁴ = 99999437 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 99999393 and 99999402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99999353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1918 + ... + 14271.

It is an arithmetic number, because the mean of its divisors is an integer number (8742600).

Almost surely, 2^99999453 is an apocalyptic number.

It is an amenable number.

99999453 is a deficient number, since it is larger than the sum of its proper divisors (39882147).

99999453 is a wasteful number, since it uses less digits than its factorization.

99999453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16292.

The product of its digits is 3542940, while the sum is 57.

The square root of 99999453 is about 9999.9726499626. The cubic root of 99999453 is about 464.1580370434.

The spelling of 99999453 in words is "ninety-nine million, nine hundred ninety-nine thousand, four hundred fifty-three".