5091687 has 16 divisors (see below), whose sum is σ = 7987680. Its totient is φ = 3194496.

The previous prime is 5091661. The next prime is 5091689. The reversal of 5091687 is 7861905.

It is not a de Polignac number, because 5091687 - 2¹² = 5087591 is a prime.

It is a super-3 number, since 3×5091687³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5091689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5088 + ... + 6005.

It is an arithmetic number, because the mean of its divisors is an integer number (499230).

Almost surely, 2^5091687 is an apocalyptic number.

5091687 is a deficient number, since it is larger than the sum of its proper divisors (2895993).

5091687 is a wasteful number, since it uses less digits than its factorization.

5091687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11119 (or 11113 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 5091687 is about 2256.4766783639. The cubic root of 5091687 is about 172.0364872115.

It can be divided in two parts, 5091 and 687, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 5091687 in words is "five million, ninety-one thousand, six hundred eighty-seven".