87882290 has 16 divisors (see below), whose sum is σ = 158393880. Its totient is φ = 35107200.

The previous prime is 87882281. The next prime is 87882307. The reversal of 87882290 is 9228878.

It can be written as a sum of positive squares in 4 ways, for example, as 83375161 + 4507129 = 9131^2 + 2123^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2990 + ... + 13590.

Almost surely, 2^87882290 is an apocalyptic number.

87882290 is a deficient number, since it is larger than the sum of its proper divisors (70511590).

87882290 is a wasteful number, since it uses less digits than its factorization.

87882290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11437.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 87882290 is about 9374.5554561270. Note that the first 3 decimals coincide. The cubic root of 87882290 is about 444.5976078824.

The spelling of 87882290 in words is "eighty-seven million, eight hundred eighty-two thousand, two hundred ninety".