10720431 has 24 divisors (see below), whose sum is σ = 16218384. Its totient is φ = 7076160.

The previous prime is 10720429. The next prime is 10720433. The reversal of 10720431 is 13402701.

It is an interprime number because it is at equal distance from previous prime (10720429) and next prime (10720433).

It is not a de Polignac number, because 10720431 - 2¹ = 10720429 is a prime.

It is a super-2 number, since 2×10720431² = 229855281651522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10720433) 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 23 ways as a sum of consecutive naturals, for example, 38011 + ... + 38291.

It is an arithmetic number, because the mean of its divisors is an integer number (675766).

Almost surely, 2^10720431 is an apocalyptic number.

10720431 is a deficient number, since it is larger than the sum of its proper divisors (5497953).

10720431 is an equidigital number, since it uses as much as digits as its factorization.

10720431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 10720431 is about 3274.2069268756. The cubic root of 10720431 is about 220.4977092640.

The spelling of 10720431 in words is "ten million, seven hundred twenty thousand, four hundred thirty-one".