22762013 has 4 divisors (see below), whose sum is σ = 23546940. Its totient is φ = 21977088.

The previous prime is 22762009. The next prime is 22762021. The reversal of 22762013 is 31026722.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7606564 + 15155449 = 2758^2 + 3893^2 .

It is a cyclic number.

It is not a de Polignac number, because 22762013 - 2² = 22762009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22762013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22765013) 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 in 3 ways as a sum of consecutive naturals, for example, 392420 + ... + 392477.

It is an arithmetic number, because the mean of its divisors is an integer number (5886735).

Almost surely, 2^22762013 is an apocalyptic number.

It is an amenable number.

22762013 is a deficient number, since it is larger than the sum of its proper divisors (784927).

22762013 is an equidigital number, since it uses as much as digits as its factorization.

22762013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784926.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 22762013 is about 4770.9551454609. The cubic root of 22762013 is about 283.4024208303.

Adding to 22762013 its reverse (31026722), we get a palindrome (53788735).

The spelling of 22762013 in words is "twenty-two million, seven hundred sixty-two thousand, thirteen".