8991902 has 16 divisors (see below), whose sum is σ = 14530560. Its totient is φ = 4159512.

The previous prime is 8991901. The next prime is 8991967. The reversal of 8991902 is 2091998.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8991901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1118 + ... + 4385.

It is an arithmetic number, because the mean of its divisors is an integer number (908160).

Almost surely, 2^8991902 is an apocalyptic number.

8991902 is a deficient number, since it is larger than the sum of its proper divisors (5538658).

8991902 is a wasteful number, since it uses less digits than its factorization.

8991902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5567.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 8991902 is about 2998.6500295967. The cubic root of 8991902 is about 207.9459764777.

The spelling of 8991902 in words is "eight million, nine hundred ninety-one thousand, nine hundred two".