99400743 has 16 divisors (see below), whose sum is σ = 158588640. Its totient is φ = 61169472.

The previous prime is 99400711. The next prime is 99400757. The reversal of 99400743 is 34700499.

It is not a de Polignac number, because 99400743 - 2⁵ = 99400711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99400698 and 99400707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99440743) 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, 141246 + ... + 141947.

It is an arithmetic number, because the mean of its divisors is an integer number (9911790).

Almost surely, 2^99400743 is an apocalyptic number.

99400743 is a deficient number, since it is larger than the sum of its proper divisors (59187897).

99400743 is a wasteful number, since it uses less digits than its factorization.

99400743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283215 (or 283209 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 99400743 is about 9969.9921263760. The cubic root of 99400743 is about 463.2298569307.

The spelling of 99400743 in words is "ninety-nine million, four hundred thousand, seven hundred forty-three".