98999637 has 16 divisors (see below), whose sum is σ = 144175680. Its totient is φ = 59926400.

The previous prime is 98999629. The next prime is 98999651. The reversal of 98999637 is 73699989.

It is a cyclic number.

It is not a de Polignac number, because 98999637 - 2³ = 98999629 is a prime.

It is a super-2 number, since 2×98999637² = 19601856252263538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98999657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39337 + ... + 41777.

It is an arithmetic number, because the mean of its divisors is an integer number (9010980).

Almost surely, 2^98999637 is an apocalyptic number.

It is an amenable number.

98999637 is a deficient number, since it is larger than the sum of its proper divisors (45176043).

98999637 is a wasteful number, since it uses less digits than its factorization.

98999637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684.

The product of its digits is 6613488, while the sum is 60.

The square root of 98999637 is about 9949.8561296131. The cubic root of 98999637 is about 462.6059355096.

The spelling of 98999637 in words is "ninety-eight million, nine hundred ninety-nine thousand, six hundred thirty-seven".