98199638 has 16 divisors (see below), whose sum is σ = 158353920. Its totient is φ = 45525096.

The previous prime is 98199631. The next prime is 98199653. The reversal of 98199638 is 83699189.

It is a self number, because there is not a number n which added to its sum of digits gives 98199638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98199631) 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, 25706 + ... + 29277.

It is an arithmetic number, because the mean of its divisors is an integer number (9897120).

Almost surely, 2^98199638 is an apocalyptic number.

98199638 is a deficient number, since it is larger than the sum of its proper divisors (60154282).

98199638 is a wasteful number, since it uses less digits than its factorization.

98199638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55051.

The product of its digits is 839808, while the sum is 53.

The square root of 98199638 is about 9909.5730483205. The cubic root of 98199638 is about 461.3564843029.

The spelling of 98199638 in words is "ninety-eight million, one hundred ninety-nine thousand, six hundred thirty-eight".