22097878 has 8 divisors (see below), whose sum is σ = 36160200. Its totient is φ = 10044480.

The previous prime is 22097851. The next prime is 22097879. The reversal of 22097878 is 87879022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22097879) 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, 502203 + ... + 502246.

It is an arithmetic number, because the mean of its divisors is an integer number (4520025).

Almost surely, 2^22097878 is an apocalyptic number.

22097878 is a deficient number, since it is larger than the sum of its proper divisors (14062322).

22097878 is a wasteful number, since it uses less digits than its factorization.

22097878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004462.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 22097878 is about 4700.8380103977. The cubic root of 22097878 is about 280.6188607675.

The spelling of 22097878 in words is "twenty-two million, ninety-seven thousand, eight hundred seventy-eight".