99945750 has 32 divisors (see below), whose sum is σ = 249466464. Its totient is φ = 26652000.

The previous prime is 99945749. The next prime is 99945751. The reversal of 99945750 is 5754999.

It is an interprime number because it is at equal distance from previous prime (99945749) and next prime (99945751).

It is a self number, because there is not a number n which added to its sum of digits gives 99945750.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99945751) 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, 65881 + ... + 67380.

It is an arithmetic number, because the mean of its divisors is an integer number (7795827).

Almost surely, 2^99945750 is an apocalyptic number.

99945750 is an abundant number, since it is smaller than the sum of its proper divisors (149520714).

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

99945750 is a wasteful number, since it uses less digits than its factorization.

99945750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133281 (or 133271 counting only the distinct ones).

The product of its (nonzero) digits is 510300, while the sum is 48.

The square root of 99945750 is about 9997.2871320174. The cubic root of 99945750 is about 464.0749327803.

The spelling of 99945750 in words is "ninety-nine million, nine hundred forty-five thousand, seven hundred fifty".