98722188 has 18 divisors (see below), whose sum is σ = 249547844. Its totient is φ = 32907384.

The previous prime is 98722153. The next prime is 98722201. The reversal of 98722188 is 88122789.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1371106 + ... + 1371177.

Almost surely, 2^98722188 is an apocalyptic number.

It is an amenable number.

98722188 is an abundant number, since it is smaller than the sum of its proper divisors (150825656).

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

98722188 is a wasteful number, since it uses less digits than its factorization.

98722188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2742293 (or 2742288 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 98722188 is about 9935.9039850433. The cubic root of 98722188 is about 462.1733762058.

The spelling of 98722188 in words is "ninety-eight million, seven hundred twenty-two thousand, one hundred eighty-eight".