10276639 has 4 divisors (see below), whose sum is σ = 10554424. Its totient is φ = 9998856.

The previous prime is 10276633. The next prime is 10276681. The reversal of 10276639 is 93667201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10276639 - 2³ = 10276631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10276631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138837 + ... + 138910.

It is an arithmetic number, because the mean of its divisors is an integer number (2638606).

Almost surely, 2^10276639 is an apocalyptic number.

10276639 is a deficient number, since it is larger than the sum of its proper divisors (277785).

10276639 is an equidigital number, since it uses as much as digits as its factorization.

10276639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277784.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 10276639 is about 3205.7197319791. The cubic root of 10276639 is about 217.4120946569.

The spelling of 10276639 in words is "ten million, two hundred seventy-six thousand, six hundred thirty-nine".