98778190 has 16 divisors (see below), whose sum is σ = 203200992. Its totient is φ = 33866784.

The previous prime is 98778179. The next prime is 98778191. The reversal of 98778190 is 9187789.

It is a super-2 number, since 2×98778190² = 19514261639352200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98778191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705489 + ... + 705628.

It is an arithmetic number, because the mean of its divisors is an integer number (12700062).

Almost surely, 2^98778190 is an apocalyptic number.

98778190 is an abundant number, since it is smaller than the sum of its proper divisors (104422802).

98778190 is a wasteful number, since it uses less digits than its factorization.

98778190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411131.

The product of its (nonzero) digits is 254016, while the sum is 49.

The square root of 98778190 is about 9938.7217487965. The cubic root of 98778190 is about 462.2607518381.

The spelling of 98778190 in words is "ninety-eight million, seven hundred seventy-eight thousand, one hundred ninety".