10623681 has 6 divisors (see below), whose sum is σ = 15345330. Its totient is φ = 7082448.

The previous prime is 10623673. The next prime is 10623689. The reversal of 10623681 is 18632601.

It is an interprime number because it is at equal distance from previous prime (10623673) and next prime (10623689).

It can be written as a sum of positive squares in only one way, i.e., 7750656 + 2873025 = 2784^2 + 1695^2 .

It is not a de Polignac number, because 10623681 - 2³ = 10623673 is a prime.

It is a super-2 number, since 2×10623681² = 225725195979522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10623689) 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, 590196 + ... + 590213.

It is an arithmetic number, because the mean of its divisors is an integer number (2557555).

Almost surely, 2^10623681 is an apocalyptic number.

It is an amenable number.

10623681 is a deficient number, since it is larger than the sum of its proper divisors (4721649).

10623681 is a wasteful number, since it uses less digits than its factorization.

10623681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180415 (or 1180412 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 10623681 is about 3259.3988709576. The cubic root of 10623681 is about 219.8323861046.

The spelling of 10623681 in words is "ten million, six hundred twenty-three thousand, six hundred eighty-one".