10487691 has 32 divisors (see below), whose sum is σ = 16729920. Its totient is φ = 6469632.

The previous prime is 10487681. The next prime is 10487699. The reversal of 10487691 is 19678401.

It is not a de Polignac number, because 10487691 - 2¹⁵ = 10454923 is a prime.

It is a super-2 number, since 2×10487691² = 219983325022962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10487699) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33351 + ... + 33663.

It is an arithmetic number, because the mean of its divisors is an integer number (522810).

Almost surely, 2^10487691 is an apocalyptic number.

10487691 is a deficient number, since it is larger than the sum of its proper divisors (6242229).

10487691 is a wasteful number, since it uses less digits than its factorization.

10487691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 10487691 is about 3238.4704723063. The cubic root of 10487691 is about 218.8903560740.

The spelling of 10487691 in words is "ten million, four hundred eighty-seven thousand, six hundred ninety-one".