98958640 has 60 divisors (see below), whose sum is σ = 252921312. Its totient is φ = 35981440.

The previous prime is 98958637. The next prime is 98958661. The reversal of 98958640 is 4685989.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4569 + ... + 14791.

Almost surely, 2^98958640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98958640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126460656).

98958640 is an abundant number, since it is smaller than the sum of its proper divisors (153962672).

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

98958640 is a wasteful number, since it uses less digits than its factorization.

98958640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10258 (or 10241 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 98958640 is about 9947.7957357397. The cubic root of 98958640 is about 462.5420697062.

The spelling of 98958640 in words is "ninety-eight million, nine hundred fifty-eight thousand, six hundred forty".