87618033 has 6 divisors (see below), whose sum is σ = 126559394. Its totient is φ = 58412016.

The previous prime is 87618029. The next prime is 87618061. The reversal of 87618033 is 33081678.

87618033 is a `hidden beast` number, since 8 + 7 + 618 + 0 + 33 = 666.

It can be written as a sum of positive squares in only one way, i.e., 52012944 + 35605089 = 7212^2 + 5967^2 .

It is not a de Polignac number, because 87618033 - 2² = 87618029 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87618023) 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, 4867660 + ... + 4867677.

Almost surely, 2^87618033 is an apocalyptic number.

It is an amenable number.

87618033 is a deficient number, since it is larger than the sum of its proper divisors (38941361).

87618033 is a wasteful number, since it uses less digits than its factorization.

87618033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9735343 (or 9735340 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 87618033 is about 9360.4504699293. The cubic root of 87618033 is about 444.1515339840.

The spelling of 87618033 in words is "eighty-seven million, six hundred eighteen thousand, thirty-three".