87726223 has 16 divisors (see below), whose sum is σ = 97530496. Its totient is φ = 78382080.

The previous prime is 87726203. The next prime is 87726227. The reversal of 87726223 is 32262778.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 87726223 - 2⁹ = 87725711 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87726227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130015 + ... + 130687.

It is an arithmetic number, because the mean of its divisors is an integer number (6095656).

Almost surely, 2^87726223 is an apocalyptic number.

87726223 is a deficient number, since it is larger than the sum of its proper divisors (9804273).

87726223 is a wasteful number, since it uses less digits than its factorization.

With its successor (87726224) it forms an eRAP, since the sums of their prime factors are consecutive (994 and 995).

87726223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994.

The product of its digits is 56448, while the sum is 37.

The square root of 87726223 is about 9366.2277892437. The cubic root of 87726223 is about 444.3342702998.

The spelling of 87726223 in words is "eighty-seven million, seven hundred twenty-six thousand, two hundred twenty-three".