87277633 has 2 divisors, whose sum is σ = 87277634. Its totient is φ = 87277632.

The previous prime is 87277627. The next prime is 87277639. The reversal of 87277633 is 33677278.

It is a balanced prime because it is at equal distance from previous prime (87277627) and next prime (87277639).

It can be written as a sum of positive squares in only one way, i.e., 82228624 + 5049009 = 9068^2 + 2247^2 .

It is a cyclic number.

It is not a de Polignac number, because 87277633 - 2⁵ = 87277601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87277633.

It is not a weakly prime, because it can be changed into another prime (87277639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43638816 + 43638817.

It is an arithmetic number, because the mean of its divisors is an integer number (43638817).

Almost surely, 2^87277633 is an apocalyptic number.

It is an amenable number.

87277633 is a deficient number, since it is larger than the sum of its proper divisors (1).

87277633 is an equidigital number, since it uses as much as digits as its factorization.

87277633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352, while the sum is 43.

The square root of 87277633 is about 9342.2498896144. The cubic root of 87277633 is about 443.5756046046.

The spelling of 87277633 in words is "eighty-seven million, two hundred seventy-seven thousand, six hundred thirty-three".