87089822 has 32 divisors (see below), whose sum is σ = 142115904. Its totient is φ = 39916800.

The previous prime is 87089797. The next prime is 87089831. The reversal of 87089822 is 22898078.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114668 + ... + 115424.

It is an arithmetic number, because the mean of its divisors is an integer number (4441122).

Almost surely, 2^87089822 is an apocalyptic number.

87089822 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

87089822 is a deficient number, since it is larger than the sum of its proper divisors (55026082).

87089822 is a wasteful number, since it uses less digits than its factorization.

87089822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884.

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

The square root of 87089822 is about 9332.1927755485. The cubic root of 87089822 is about 443.2572022713.

The spelling of 87089822 in words is "eighty-seven million, eighty-nine thousand, eight hundred twenty-two".