22738547 has 4 divisors (see below), whose sum is σ = 24487680. Its totient is φ = 20989416.

The previous prime is 22738501. The next prime is 22738567. The reversal of 22738547 is 74583722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74583722 = 2 ⋅37291861.

It is a cyclic number.

It is not a de Polignac number, because 22738547 - 2⁶ = 22738483 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 22738547.

It is not an unprimeable number, because it can be changed into a prime (22738567) 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, 874547 + ... + 874572.

It is an arithmetic number, because the mean of its divisors is an integer number (6121920).

Almost surely, 2^22738547 is an apocalyptic number.

22738547 is a deficient number, since it is larger than the sum of its proper divisors (1749133).

22738547 is a wasteful number, since it uses less digits than its factorization.

22738547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749132.

The product of its digits is 94080, while the sum is 38.

The square root of 22738547 is about 4768.4952553190. The cubic root of 22738547 is about 283.3049981660.

The spelling of 22738547 in words is "twenty-two million, seven hundred thirty-eight thousand, five hundred forty-seven".