99983750 has 20 divisors (see below), whose sum is σ = 187411884. Its totient is φ = 39993000.

The previous prime is 99983717. The next prime is 99983753. The reversal of 99983750 is 5738999.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99983753) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 38744 + ... + 41243.

Almost surely, 2^99983750 is an apocalyptic number.

99983750 is a deficient number, since it is larger than the sum of its proper divisors (87428134).

99983750 is an equidigital number, since it uses as much as digits as its factorization.

99983750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80009 (or 79994 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 99983750 is about 9999.1874669895. The cubic root of 99983750 is about 464.1337400598.

The spelling of 99983750 in words is "ninety-nine million, nine hundred eighty-three thousand, seven hundred fifty".