10040687 has 4 divisors (see below), whose sum is σ = 10190616. Its totient is φ = 9890760.

The previous prime is 10040671. The next prime is 10040689. The reversal of 10040687 is 78604001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78604001 = 7 ⋅11229143.

It is a cyclic number.

It is not a de Polignac number, because 10040687 - 2⁴ = 10040671 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 (10040689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74864 + ... + 74997.

It is an arithmetic number, because the mean of its divisors is an integer number (2547654).

Almost surely, 2^10040687 is an apocalyptic number.

10040687 is a deficient number, since it is larger than the sum of its proper divisors (149929).

10040687 is an equidigital number, since it uses as much as digits as its factorization.

10040687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149928.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 10040687 is about 3168.7043093353. The cubic root of 10040687 is about 215.7352652306.

Adding to 10040687 its reverse (78604001), we get a palindrome (88644688).

The spelling of 10040687 in words is "ten million, forty thousand, six hundred eighty-seven".