8191902 has 16 divisors (see below), whose sum is σ = 16416000. Its totient is φ = 2725272.

The previous prime is 8191877. The next prime is 8191903. The reversal of 8191902 is 2091918.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 8191902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8191903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3099 + ... + 5097.

It is an arithmetic number, because the mean of its divisors is an integer number (1026000).

Almost surely, 2^8191902 is an apocalyptic number.

8191902 is an abundant number, since it is smaller than the sum of its proper divisors (8224098).

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

8191902 is a wasteful number, since it uses less digits than its factorization.

8191902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2687.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 8191902 is about 2862.1498912531. The cubic root of 8191902 is about 201.5865641241.

The spelling of 8191902 in words is "eight million, one hundred ninety-one thousand, nine hundred two".