98990658 has 48 divisors (see below), whose sum is σ = 232866816. Its totient is φ = 30209760.

The previous prime is 98990653. The next prime is 98990663. The reversal of 98990658 is 85609989.

It is an interprime number because it is at equal distance from previous prime (98990653) and next prime (98990663).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (98990653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28053 + ... + 31383.

It is an arithmetic number, because the mean of its divisors is an integer number (4851392).

Almost surely, 2^98990658 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98990658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116433408).

98990658 is an abundant number, since it is smaller than the sum of its proper divisors (133876158).

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

98990658 is a wasteful number, since it uses less digits than its factorization.

98990658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479 (or 3476 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The square root of 98990658 is about 9949.4049068273. The cubic root of 98990658 is about 462.5919493833.

The spelling of 98990658 in words is "ninety-eight million, nine hundred ninety thousand, six hundred fifty-eight".