87227973 has 24 divisors (see below), whose sum is σ = 146030976. Its totient is φ = 49140000.

The previous prime is 87227971. The next prime is 87227989. The reversal of 87227973 is 37972278.

It is not a de Polignac number, because 87227973 - 2¹ = 87227971 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87227971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5278 + ... + 14223.

It is an arithmetic number, because the mean of its divisors is an integer number (6084624).

Almost surely, 2^87227973 is an apocalyptic number.

It is an amenable number.

87227973 is a deficient number, since it is larger than the sum of its proper divisors (58803003).

87227973 is a wasteful number, since it uses less digits than its factorization.

87227973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19585 (or 19582 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 87227973 is about 9339.5916934307. The cubic root of 87227973 is about 443.4914587856.

The spelling of 87227973 in words is "eighty-seven million, two hundred twenty-seven thousand, nine hundred seventy-three".