98778472 has 24 divisors (see below), whose sum is σ = 200555190. Its totient is φ = 45589440.

The previous prime is 98778469. The next prime is 98778479. The reversal of 98778472 is 27487789.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 20738916 + 78039556 = 4554^2 + 8834^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (98778479) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35179 + ... + 37882.

Almost surely, 2^98778472 is an apocalyptic number.

It is an amenable number.

98778472 is an abundant number, since it is smaller than the sum of its proper divisors (101776718).

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

98778472 is a wasteful number, since it uses less digits than its factorization.

98778472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73093 (or 73076 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 52.

The square root of 98778472 is about 9938.7359357214. The cubic root of 98778472 is about 462.2611917376.

The spelling of 98778472 in words is "ninety-eight million, seven hundred seventy-eight thousand, four hundred seventy-two".