99687902 has 4 divisors (see below), whose sum is σ = 149531856. Its totient is φ = 49843950.

The previous prime is 99687901. The next prime is 99687937. The reversal of 99687902 is 20978699.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99687901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24921974 + ... + 24921977.

It is an arithmetic number, because the mean of its divisors is an integer number (37382964).

Almost surely, 2^99687902 is an apocalyptic number.

99687902 is a deficient number, since it is larger than the sum of its proper divisors (49843954).

99687902 is a wasteful number, since it uses less digits than its factorization.

99687902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49843953.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 99687902 is about 9984.3829053177. The cubic root of 99687902 is about 463.6755032748.

The spelling of 99687902 in words is "ninety-nine million, six hundred eighty-seven thousand, nine hundred two".