10431887 has 4 divisors (see below), whose sum is σ = 10472736. Its totient is φ = 10391040.

The previous prime is 10431859. The next prime is 10431899. The reversal of 10431887 is 78813401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10431887 - 2⁶ = 10431823 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 (10431587) 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, 20039 + ... + 20552.

It is an arithmetic number, because the mean of its divisors is an integer number (2618184).

Almost surely, 2^10431887 is an apocalyptic number.

10431887 is a deficient number, since it is larger than the sum of its proper divisors (40849).

10431887 is an equidigital number, since it uses as much as digits as its factorization.

10431887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40848.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 10431887 is about 3229.8431850478. The cubic root of 10431887 is about 218.5014339057.

The spelling of 10431887 in words is "ten million, four hundred thirty-one thousand, eight hundred eighty-seven".