22978103 has 4 divisors (see below), whose sum is σ = 22987728. Its totient is φ = 22968480.

The previous prime is 22978091. The next prime is 22978117. The reversal of 22978103 is 30187922.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22978103 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 22978103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22978133) 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, 1775 + ... + 7007.

It is an arithmetic number, because the mean of its divisors is an integer number (5746932).

Almost surely, 2^22978103 is an apocalyptic number.

22978103 is a deficient number, since it is larger than the sum of its proper divisors (9625).

22978103 is an equidigital number, since it uses as much as digits as its factorization.

22978103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9624.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 22978103 is about 4793.5480596318. The cubic root of 22978103 is about 284.2964198291.

The spelling of 22978103 in words is "twenty-two million, nine hundred seventy-eight thousand, one hundred three".