99998837 has 4 divisors (see below), whose sum is σ = 100100736. Its totient is φ = 99896940.

The previous prime is 99998819. The next prime is 99998851. The reversal of 99998837 is 73889999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99998837 - 2¹⁴ = 99982453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99998837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99997837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49463 + ... + 51444.

It is an arithmetic number, because the mean of its divisors is an integer number (25025184).

Almost surely, 2^99998837 is an apocalyptic number.

It is an amenable number.

99998837 is a deficient number, since it is larger than the sum of its proper divisors (101899).

99998837 is a wasteful number, since it uses less digits than its factorization.

99998837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101898.

The product of its digits is 8817984, while the sum is 62.

The square root of 99998837 is about 9999.9418498309. The cubic root of 99998837 is about 464.1570839650.

The spelling of 99998837 in words is "ninety-nine million, nine hundred ninety-eight thousand, eight hundred thirty-seven".