87747013 has 8 divisors (see below), whose sum is σ = 92992320. Its totient is φ = 82511040.

The previous prime is 87746999. The next prime is 87747029. The reversal of 87747013 is 31074778.

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

It is a cyclic number.

It is not a de Polignac number, because 87747013 - 2²⁵ = 54192581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87747113) 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, 29718 + ... + 32536.

It is an arithmetic number, because the mean of its divisors is an integer number (11624040).

Almost surely, 2^87747013 is an apocalyptic number.

It is an amenable number.

87747013 is a deficient number, since it is larger than the sum of its proper divisors (5245307).

87747013 is a wasteful number, since it uses less digits than its factorization.

87747013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4667.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 87747013 is about 9367.3375619757. The cubic root of 87747013 is about 444.3693680525.

The spelling of 87747013 in words is "eighty-seven million, seven hundred forty-seven thousand, thirteen".