87726277 has 4 divisors (see below), whose sum is σ = 88594956. Its totient is φ = 86857600.

The previous prime is 87726271. The next prime is 87726329. The reversal of 87726277 is 77262778.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72352036 + 15374241 = 8506^2 + 3921^2 .

It is a cyclic number.

It is not a de Polignac number, because 87726277 - 2¹¹ = 87724229 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 (87726271) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 434188 + ... + 434389.

It is an arithmetic number, because the mean of its divisors is an integer number (22148739).

Almost surely, 2^87726277 is an apocalyptic number.

It is an amenable number.

87726277 is a deficient number, since it is larger than the sum of its proper divisors (868679).

87726277 is a wasteful number, since it uses less digits than its factorization.

87726277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868678.

The product of its digits is 460992, while the sum is 46.

The square root of 87726277 is about 9366.2306719406. The cubic root of 87726277 is about 444.3343614700.

The spelling of 87726277 in words is "eighty-seven million, seven hundred twenty-six thousand, two hundred seventy-seven".