99998767 has 16 divisors (see below), whose sum is σ = 115171200. Its totient is φ = 85868640.

The previous prime is 99998749. The next prime is 99998783. The reversal of 99998767 is 76789999.

It is not a de Polignac number, because 99998767 - 2¹¹ = 99996719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99998699 and 99998708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99998797) 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, 115984 + ... + 116842.

It is an arithmetic number, because the mean of its divisors is an integer number (7198200).

Almost surely, 2^99998767 is an apocalyptic number.

99998767 is a deficient number, since it is larger than the sum of its proper divisors (15172433).

99998767 is a wasteful number, since it uses less digits than its factorization.

99998767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446.

The product of its digits is 15431472, while the sum is 64.

The square root of 99998767 is about 9999.9383498100. The cubic root of 99998767 is about 464.1569756604.

The spelling of 99998767 in words is "ninety-nine million, nine hundred ninety-eight thousand, seven hundred sixty-seven".