99429864 has 64 divisors (see below), whose sum is σ = 258508800. Its totient is φ = 31831296.

The previous prime is 99429853. The next prime is 99429877. The reversal of 99429864 is 46892499.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259417 + ... + 259799.

It is an arithmetic number, because the mean of its divisors is an integer number (4039200).

Almost surely, 2^99429864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99429864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129254400).

99429864 is an abundant number, since it is smaller than the sum of its proper divisors (159078936).

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

99429864 is a wasteful number, since it uses less digits than its factorization.

99429864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794 (or 790 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 51.

The square root of 99429864 is about 9971.4524518748. The cubic root of 99429864 is about 463.2750893208.

The spelling of 99429864 in words is "ninety-nine million, four hundred twenty-nine thousand, eight hundred sixty-four".