87124707 has 8 divisors (see below), whose sum is σ = 129073680. Its totient is φ = 58083120.

The previous prime is 87124693. The next prime is 87124717. The reversal of 87124707 is 70742178.

It is not a de Polignac number, because 87124707 - 2⁴ = 87124691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87124717) 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, 1613394 + ... + 1613447.

It is an arithmetic number, because the mean of its divisors is an integer number (16134210).

Almost surely, 2^87124707 is an apocalyptic number.

87124707 is a deficient number, since it is larger than the sum of its proper divisors (41948973).

87124707 is a wasteful number, since it uses less digits than its factorization.

87124707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3226850 (or 3226844 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 87124707 is about 9334.0616561066. The cubic root of 87124707 is about 443.3163785829.

The spelling of 87124707 in words is "eighty-seven million, one hundred twenty-four thousand, seven hundred seven".