87707633 has 8 divisors (see below), whose sum is σ = 96237288. Its totient is φ = 79432704.

The previous prime is 87707611. The next prime is 87707639. The reversal of 87707633 is 33670778.

It can be written as a sum of positive squares in 4 ways, for example, as 21967969 + 65739664 = 4687^2 + 8108^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-87707633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87707639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62960 + ... + 64337.

It is an arithmetic number, because the mean of its divisors is an integer number (12029661).

Almost surely, 2^87707633 is an apocalyptic number.

It is an amenable number.

87707633 is a deficient number, since it is larger than the sum of its proper divisors (8529655).

87707633 is a wasteful number, since it uses less digits than its factorization.

87707633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127363.

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 87707633 is about 9365.2353414103. The cubic root of 87707633 is about 444.3028818987.

The spelling of 87707633 in words is "eighty-seven million, seven hundred seven thousand, six hundred thirty-three".