87226577 has 4 divisors (see below), whose sum is σ = 90234420. Its totient is φ = 84218736.

The previous prime is 87226567. The next prime is 87226583. The reversal of 87226577 is 77562278.

It is a happy number.

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 60590656 + 26635921 = 7784^2 + 5161^2 .

It is a cyclic number.

It is not a de Polignac number, because 87226577 - 2⁴ = 87226561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87226547) 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, 1503878 + ... + 1503935.

It is an arithmetic number, because the mean of its divisors is an integer number (22558605).

Almost surely, 2^87226577 is an apocalyptic number.

It is an amenable number.

87226577 is a deficient number, since it is larger than the sum of its proper divisors (3007843).

87226577 is a wasteful number, since it uses less digits than its factorization.

87226577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007842.

The product of its digits is 329280, while the sum is 44.

The square root of 87226577 is about 9339.5169575305. The cubic root of 87226577 is about 443.4890928879.

The spelling of 87226577 in words is "eighty-seven million, two hundred twenty-six thousand, five hundred seventy-seven".