99997494 has 32 divisors (see below), whose sum is σ = 212714880. Its totient is φ = 31249152.

The previous prime is 99997493. The next prime is 99997511. The reversal of 99997494 is 49479999.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99997493) 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, 6537 + ... + 15579.

It is an arithmetic number, because the mean of its divisors is an integer number (6647340).

Almost surely, 2^99997494 is an apocalyptic number.

99997494 is an abundant number, since it is smaller than the sum of its proper divisors (112717386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99997494 is a wasteful number, since it uses less digits than its factorization.

99997494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9164.

The product of its digits is 6613488, while the sum is 60.

The square root of 99997494 is about 9999.8746992150. The cubic root of 99997494 is about 464.1550060550.

The spelling of 99997494 in words is "ninety-nine million, nine hundred ninety-seven thousand, four hundred ninety-four".