22097975 has 12 divisors (see below), whose sum is σ = 28071120. Its totient is φ = 17246400.

The previous prime is 22097927. The next prime is 22097987. The reversal of 22097975 is 57979022.

It is a happy number.

It is not a de Polignac number, because 22097975 - 2¹² = 22093879 is a prime.

It is a super-3 number, since 3×22097975³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9755 + ... + 11804.

It is an arithmetic number, because the mean of its divisors is an integer number (2339260).

Almost surely, 2^22097975 is an apocalyptic number.

22097975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22097975 is a deficient number, since it is larger than the sum of its proper divisors (5973145).

22097975 is a wasteful number, since it uses less digits than its factorization.

22097975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21610 (or 21605 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 22097975 is about 4700.8483276958. The cubic root of 22097975 is about 280.6192713648.

The spelling of 22097975 in words is "twenty-two million, ninety-seven thousand, nine hundred seventy-five".