98661870 has 48 divisors (see below), whose sum is σ = 270026640. Its totient is φ = 24924672.

The previous prime is 98661853. The next prime is 98661887. The reversal of 98661870 is 7816689.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (98661853) and next prime (98661887).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27139 + ... + 30558.

It is an arithmetic number, because the mean of its divisors is an integer number (5625555).

Almost surely, 2^98661870 is an apocalyptic number.

98661870 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

98661870 is an abundant number, since it is smaller than the sum of its proper divisors (171364770).

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

98661870 is a wasteful number, since it uses less digits than its factorization.

98661870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57729 (or 57726 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 98661870 is about 9932.8681658421. The cubic root of 98661870 is about 462.0792296795.

The spelling of 98661870 in words is "ninety-eight million, six hundred sixty-one thousand, eight hundred seventy".