98778772 has 48 divisors (see below), whose sum is σ = 193148928. Its totient is φ = 43983360.

The previous prime is 98778749. The next prime is 98778773. The reversal of 98778772 is 27787789.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98778773) 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, 98578 + ... + 99574.

It is an arithmetic number, because the mean of its divisors is an integer number (4023936).

Almost surely, 2^98778772 is an apocalyptic number.

It is an amenable number.

98778772 is a deficient number, since it is larger than the sum of its proper divisors (94370156).

98778772 is a wasteful number, since it uses less digits than its factorization.

98778772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096 (or 1094 counting only the distinct ones).

The product of its digits is 2765952, while the sum is 55.

The square root of 98778772 is about 9938.7510281725. The cubic root of 98778772 is about 462.2616597148.

The spelling of 98778772 in words is "ninety-eight million, seven hundred seventy-eight thousand, seven hundred seventy-two".