10742639 has 2 divisors, whose sum is σ = 10742640. Its totient is φ = 10742638.

The previous prime is 10742629. The next prime is 10742651. The reversal of 10742639 is 93624701.

10742639 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10742639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10742629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5371319 + 5371320.

It is an arithmetic number, because the mean of its divisors is an integer number (5371320).

Almost surely, 2^10742639 is an apocalyptic number.

10742639 is a deficient number, since it is larger than the sum of its proper divisors (1).

10742639 is an equidigital number, since it uses as much as digits as its factorization.

10742639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 10742639 is about 3277.5965279454. The cubic root of 10742639 is about 220.6498622159.

The spelling of 10742639 in words is "ten million, seven hundred forty-two thousand, six hundred thirty-nine".