87225763 has 4 divisors (see below), whose sum is σ = 87573528. Its totient is φ = 86878000.

The previous prime is 87225709. The next prime is 87225767. The reversal of 87225763 is 36752278.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36752278 = 2 ⋅18376139.

It is a cyclic number.

It is not a de Polignac number, because 87225763 - 2¹⁷ = 87094691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87225767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173506 + ... + 174007.

It is an arithmetic number, because the mean of its divisors is an integer number (21893382).

Almost surely, 2^87225763 is an apocalyptic number.

87225763 is a deficient number, since it is larger than the sum of its proper divisors (347765).

87225763 is a wasteful number, since it uses less digits than its factorization.

87225763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347764.

The product of its digits is 141120, while the sum is 40.

The square root of 87225763 is about 9339.4733791579. The cubic root of 87225763 is about 443.4877133341.

The spelling of 87225763 in words is "eighty-seven million, two hundred twenty-five thousand, seven hundred sixty-three".