99985434 has 8 divisors (see below), whose sum is σ = 199970880. Its totient is φ = 33328476.

The previous prime is 99985427. The next prime is 99985441. The reversal of 99985434 is 43458999.

It is an interprime number because it is at equal distance from previous prime (99985427) and next prime (99985441).

It is a sphenic number, since it is the product of 3 distinct primes.

99985434 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8332114 + ... + 8332125.

It is an arithmetic number, because the mean of its divisors is an integer number (24996360).

Almost surely, 2^99985434 is an apocalyptic number.

99985434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

99985434 is a wasteful number, since it uses less digits than its factorization.

99985434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16664244.

The product of its digits is 1399680, while the sum is 51.

The square root of 99985434 is about 9999.2716734770. The cubic root of 99985434 is about 464.1363458060.

The spelling of 99985434 in words is "ninety-nine million, nine hundred eighty-five thousand, four hundred thirty-four".