22069487 has 4 divisors (see below), whose sum is σ = 24075816. Its totient is φ = 20063160.

The previous prime is 22069483. The next prime is 22069517. The reversal of 22069487 is 78496022.

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

It is a cyclic number.

It is not a de Polignac number, because 22069487 - 2² = 22069483 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 22069487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22069483) 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, 1003148 + ... + 1003169.

It is an arithmetic number, because the mean of its divisors is an integer number (6018954).

Almost surely, 2^22069487 is an apocalyptic number.

22069487 is a deficient number, since it is larger than the sum of its proper divisors (2006329).

22069487 is a wasteful number, since it uses less digits than its factorization.

22069487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006328.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 22069487 is about 4697.8172591109. The cubic root of 22069487 is about 280.4986310560.

The spelling of 22069487 in words is "twenty-two million, sixty-nine thousand, four hundred eighty-seven".