99997400 has 48 divisors (see below), whose sum is σ = 246178440. Its totient is φ = 37644800.

The previous prime is 99997393. The next prime is 99997411. The reversal of 99997400 is 479999.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11306 + ... + 18105.

Almost surely, 2^99997400 is an apocalyptic number.

It is an amenable number.

99997400 is an abundant number, since it is smaller than the sum of its proper divisors (146181040).

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

99997400 is a wasteful number, since it uses less digits than its factorization.

99997400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29444 (or 29435 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 47.

The square root of 99997400 is about 9999.8699991550. The cubic root of 99997400 is about 464.1548606161.

The spelling of 99997400 in words is "ninety-nine million, nine hundred ninety-seven thousand, four hundred".