98618644 has 12 divisors (see below), whose sum is σ = 172767168. Its totient is φ = 49256600.

The previous prime is 98618633. The next prime is 98618671. The reversal of 98618644 is 44681689.

It is a junction number, because it is equal to n+sod(n) for n = 98618594 and 98618603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8812 + ... + 16579.

It is an arithmetic number, because the mean of its divisors is an integer number (14397264).

Almost surely, 2^98618644 is an apocalyptic number.

It is an amenable number.

98618644 is a deficient number, since it is larger than the sum of its proper divisors (74148524).

98618644 is a wasteful number, since it uses less digits than its factorization.

98618644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26366 (or 26364 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 98618644 is about 9930.6920201968. The cubic root of 98618644 is about 462.0117373629.

The spelling of 98618644 in words is "ninety-eight million, six hundred eighteen thousand, six hundred forty-four".