10621879 has 2 divisors, whose sum is σ = 10621880. Its totient is φ = 10621878.

The previous prime is 10621861. The next prime is 10621913. The reversal of 10621879 is 97812601.

It is a happy number.

10621879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (10621913) can be obtained adding 10621879 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10621879 - 2²¹ = 8524727 is a prime.

It is a super-2 number, since 2×10621879² = 225648626981282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10621579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5310939 + 5310940.

It is an arithmetic number, because the mean of its divisors is an integer number (5310940).

Almost surely, 2^10621879 is an apocalyptic number.

10621879 is a deficient number, since it is larger than the sum of its proper divisors (1).

10621879 is an equidigital number, since it uses as much as digits as its factorization.

10621879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 10621879 is about 3259.1224278937. The cubic root of 10621879 is about 219.8199560012.

The spelling of 10621879 in words is "ten million, six hundred twenty-one thousand, eight hundred seventy-nine".