98999975 has 48 divisors (see below), whose sum is σ = 136836480. Its totient is φ = 70761600.

The previous prime is 98999969. The next prime is 98999977. The reversal of 98999975 is 57999989.

It is not a de Polignac number, because 98999975 - 2⁶ = 98999911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98999977) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 755660 + ... + 755790.

It is an arithmetic number, because the mean of its divisors is an integer number (2850760).

Almost surely, 2^98999975 is an apocalyptic number.

98999975 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

98999975 is a deficient number, since it is larger than the sum of its proper divisors (37836505).

98999975 is a wasteful number, since it uses less digits than its factorization.

98999975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 235 counting only the distinct ones).

The product of its digits is 16533720, while the sum is 65.

The square root of 98999975 is about 9949.8731147689. The cubic root of 98999975 is about 462.6064619783.

The spelling of 98999975 in words is "ninety-eight million, nine hundred ninety-nine thousand, nine hundred seventy-five".