10722639 has 8 divisors (see below), whose sum is σ = 14337280. Its totient is φ = 7128216.

The previous prime is 10722619. The next prime is 10722653. The reversal of 10722639 is 93622701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-10722639 is a prime.

It is a super-2 number, since 2×10722639² = 229949974248642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10722619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3769 + ... + 5970.

It is an arithmetic number, because the mean of its divisors is an integer number (1792160).

Almost surely, 2^10722639 is an apocalyptic number.

10722639 is a deficient number, since it is larger than the sum of its proper divisors (3614641).

10722639 is an equidigital number, since it uses as much as digits as its factorization.

10722639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10109.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 10722639 is about 3274.5440904040. The cubic root of 10722639 is about 220.5128462649.

It can be divided in two parts, 107226 and 39, that multiplied together give a palindrome (4181814).

The spelling of 10722639 in words is "ten million, seven hundred twenty-two thousand, six hundred thirty-nine".