98779492 has 72 divisors (see below), whose sum is σ = 211236984. Its totient is φ = 40255488.

The previous prime is 98779463. The next prime is 98779493. The reversal of 98779492 is 29497789.

It can be written as a sum of positive squares in 4 ways, for example, as 75585636 + 23193856 = 8694^2 + 4816^2 .

It is not an unprimeable number, because it can be changed into a prime (98779493) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 384228 + ... + 384484.

It is an arithmetic number, because the mean of its divisors is an integer number (2933847).

Almost surely, 2^98779492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98779492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105618492).

98779492 is an abundant number, since it is smaller than the sum of its proper divisors (112457492).

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

98779492 is a wasteful number, since it uses less digits than its factorization.

98779492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 356 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 55.

The square root of 98779492 is about 9938.7872499616. The cubic root of 98779492 is about 462.2627828562.

The spelling of 98779492 in words is "ninety-eight million, seven hundred seventy-nine thousand, four hundred ninety-two".