913872687 has 48 divisors (see below), whose sum is σ = 1537062912. Its totient is φ = 478699200.

The previous prime is 913872667. The next prime is 913872691. The reversal of 913872687 is 786278319.

It is not a de Polignac number, because 913872687 - 2¹⁶ = 913807151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (913872647) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 286978 + ... + 290144.

It is an arithmetic number, because the mean of its divisors is an integer number (32022144).

Almost surely, 2^913872687 is an apocalyptic number.

913872687 is a deficient number, since it is larger than the sum of its proper divisors (623190225).

913872687 is a wasteful number, since it uses less digits than its factorization.

913872687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3348 (or 3341 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 51.

The square root of 913872687 is about 30230.3272724594. The cubic root of 913872687 is about 970.4248279060.

The spelling of 913872687 in words is "nine hundred thirteen million, eight hundred seventy-two thousand, six hundred eighty-seven".