99869634 has 48 divisors (see below), whose sum is σ = 227448000. Its totient is φ = 31609248.

The previous prime is 99869633. The next prime is 99869639. The reversal of 99869634 is 43696899.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (99869633) 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, 60877 + ... + 62495.

It is an arithmetic number, because the mean of its divisors is an integer number (4738500).

Almost surely, 2^99869634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99869634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113724000).

99869634 is an abundant number, since it is smaller than the sum of its proper divisors (127578366).

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

99869634 is a wasteful number, since it uses less digits than its factorization.

99869634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799 (or 1796 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 99869634 is about 9993.4795742024. The cubic root of 99869634 is about 463.9570938576.

The spelling of 99869634 in words is "ninety-nine million, eight hundred sixty-nine thousand, six hundred thirty-four".