10624981 has 2 divisors, whose sum is σ = 10624982. Its totient is φ = 10624980.

The previous prime is 10624979. The next prime is 10624987. The reversal of 10624981 is 18942601.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10048900 + 576081 = 3170^2 + 759^2 .

It is a cyclic number.

It is not a de Polignac number, because 10624981 - 2¹ = 10624979 is a prime.

It is a super-2 number, since 2×10624981² = 225780442500722, which contains 22 as substring.

Together with 10624979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10624987) 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 as a sum of consecutive naturals, namely, 5312490 + 5312491.

It is an arithmetic number, because the mean of its divisors is an integer number (5312491).

Almost surely, 2^10624981 is an apocalyptic number.

It is an amenable number.

10624981 is a deficient number, since it is larger than the sum of its proper divisors (1).

10624981 is an equidigital number, since it uses as much as digits as its factorization.

10624981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 10624981 is about 3259.5982881331. The cubic root of 10624981 is about 219.8413525651.

The spelling of 10624981 in words is "ten million, six hundred twenty-four thousand, nine hundred eighty-one".