99997254 has 80 divisors (see below), whose sum is σ = 258746400. Its totient is φ = 28273536.

The previous prime is 99997243. The next prime is 99997267. The reversal of 99997254 is 45279999.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 99997254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 123202 + ... + 124010.

It is an arithmetic number, because the mean of its divisors is an integer number (3234330).

Almost surely, 2^99997254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99997254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129373200).

99997254 is an abundant number, since it is smaller than the sum of its proper divisors (158749146).

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

99997254 is a wasteful number, since it uses less digits than its factorization.

99997254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939 (or 930 counting only the distinct ones).

The product of its digits is 1837080, while the sum is 54.

The square root of 99997254 is about 9999.8626990574. The cubic root of 99997254 is about 464.1546347214.

The spelling of 99997254 in words is "ninety-nine million, nine hundred ninety-seven thousand, two hundred fifty-four".