10643731 has 6 divisors (see below), whose sum is σ = 12381540. Its totient is φ = 9123156.

The previous prime is 10643719. The next prime is 10643771. The reversal of 10643731 is 13734601.

It is not a de Polignac number, because 10643731 - 2¹⁷ = 10512659 is a prime.

It is a super-2 number, since 2×10643731² = 226578019200722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10643696 and 10643705.

It is not an unprimeable number, because it can be changed into a prime (10643701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108561 + ... + 108658.

It is an arithmetic number, because the mean of its divisors is an integer number (2063590).

Almost surely, 2^10643731 is an apocalyptic number.

10643731 is a deficient number, since it is larger than the sum of its proper divisors (1737809).

10643731 is an equidigital number, since it uses as much as digits as its factorization.

10643731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217233 (or 217226 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 10643731 is about 3262.4731416519. The cubic root of 10643731 is about 219.9705952435.

The spelling of 10643731 in words is "ten million, six hundred forty-three thousand, seven hundred thirty-one".