87266773 has 6 divisors (see below), whose sum is σ = 95921462. Its totient is φ = 79333320.

The previous prime is 87266759. The next prime is 87266869. The reversal of 87266773 is 37766278.

It can be written as a sum of positive squares in only one way, i.e., 43996689 + 43270084 = 6633^2 + 6578^2 .

It is not a de Polignac number, because 87266773 - 2⁵ = 87266741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87266743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 360486 + ... + 360727.

Almost surely, 2^87266773 is an apocalyptic number.

It is an amenable number.

87266773 is a deficient number, since it is larger than the sum of its proper divisors (8654689).

87266773 is a wasteful number, since it uses less digits than its factorization.

87266773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721235 (or 721224 counting only the distinct ones).

The product of its digits is 592704, while the sum is 46.

The square root of 87266773 is about 9341.6686410941. The cubic root of 87266773 is about 443.5572057292.

The spelling of 87266773 in words is "eighty-seven million, two hundred sixty-six thousand, seven hundred seventy-three".