8172290 has 16 divisors (see below), whose sum is σ = 16811712. Its totient is φ = 2801904.

The previous prime is 8172253. The next prime is 8172293. The reversal of 8172290 is 922718.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8172293) 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, 58304 + ... + 58443.

It is an arithmetic number, because the mean of its divisors is an integer number (1050732).

Almost surely, 2^8172290 is an apocalyptic number.

8172290 is an abundant number, since it is smaller than the sum of its proper divisors (8639422).

8172290 is a wasteful number, since it uses less digits than its factorization.

8172290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116761.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 8172290 is about 2858.7217423177. The cubic root of 8172290 is about 201.4255646843.

The spelling of 8172290 in words is "eight million, one hundred seventy-two thousand, two hundred ninety".