98391970 has 16 divisors (see below), whose sum is σ = 177763968. Its totient is φ = 39210480.

The previous prime is 98391961. The next prime is 98391977. The reversal of 98391970 is 7919389.

It is a self number, because there is not a number n which added to its sum of digits gives 98391970.

It is not an unprimeable number, because it can be changed into a prime (98391977) 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, 15444 + ... + 20863.

It is an arithmetic number, because the mean of its divisors is an integer number (11110248).

Almost surely, 2^98391970 is an apocalyptic number.

98391970 is a deficient number, since it is larger than the sum of its proper divisors (79371998).

98391970 is a wasteful number, since it uses less digits than its factorization.

98391970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36585.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 98391970 is about 9919.2726547867. The cubic root of 98391970 is about 461.6574893080.

The spelling of 98391970 in words is "ninety-eight million, three hundred ninety-one thousand, nine hundred seventy".