22365047 has 4 divisors (see below), whose sum is σ = 23680656. Its totient is φ = 21049440.

The previous prime is 22365037. The next prime is 22365053. The reversal of 22365047 is 74056322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74056322 = 2 ⋅37028161.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22365047 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 (22365017) 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, 657779 + ... + 657812.

It is an arithmetic number, because the mean of its divisors is an integer number (5920164).

Almost surely, 2^22365047 is an apocalyptic number.

22365047 is a deficient number, since it is larger than the sum of its proper divisors (1315609).

22365047 is a wasteful number, since it uses less digits than its factorization.

22365047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315608.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 22365047 is about 4729.1698002926. The cubic root of 22365047 is about 281.7452513866.

The spelling of 22365047 in words is "twenty-two million, three hundred sixty-five thousand, forty-seven".