98774999 has 4 divisors (see below), whose sum is σ = 101072136. Its totient is φ = 96477864.

The previous prime is 98774983. The next prime is 98775007. The reversal of 98774999 is 99947789.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 98774999 - 2⁴ = 98774983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98774969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1148504 + ... + 1148589.

It is an arithmetic number, because the mean of its divisors is an integer number (25268034).

Almost surely, 2^98774999 is an apocalyptic number.

98774999 is a deficient number, since it is larger than the sum of its proper divisors (2297137).

98774999 is a wasteful number, since it uses less digits than its factorization.

98774999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297136.

The product of its digits is 10287648, while the sum is 62.

The square root of 98774999 is about 9938.5612137774. The cubic root of 98774999 is about 462.2557740526.

The spelling of 98774999 in words is "ninety-eight million, seven hundred seventy-four thousand, nine hundred ninety-nine".