98679840 has 192 divisors, whose sum is σ = 364041216. Its totient is φ = 21998592.

The previous prime is 98679829. The next prime is 98679857. The reversal of 98679840 is 4897689.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144139 + ... + 144821.

It is an arithmetic number, because the mean of its divisors is an integer number (1896048).

Almost surely, 2^98679840 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 98679840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182020608).

98679840 is an abundant number, since it is smaller than the sum of its proper divisors (265361376).

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

98679840 is a wasteful number, since it uses less digits than its factorization.

98679840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751 (or 743 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 98679840 is about 9933.7726972183. The cubic root of 98679840 is about 462.1072819205.

The spelling of 98679840 in words is "ninety-eight million, six hundred seventy-nine thousand, eight hundred forty".