22321497 has 8 divisors (see below), whose sum is σ = 32467680. Its totient is φ = 13528160.

The previous prime is 22321489. The next prime is 22321501. The reversal of 22321497 is 79412322.

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

It is a cyclic number.

It is not a de Polignac number, because 22321497 - 2³ = 22321489 is a prime.

It is a super-3 number, since 3×22321497³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22321487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338172 + ... + 338237.

It is an arithmetic number, because the mean of its divisors is an integer number (4058460).

Almost surely, 2^22321497 is an apocalyptic number.

It is an amenable number.

22321497 is a deficient number, since it is larger than the sum of its proper divisors (10146183).

22321497 is a wasteful number, since it uses less digits than its factorization.

22321497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676423.

The product of its digits is 6048, while the sum is 30.

The square root of 22321497 is about 4724.5631544091. The cubic root of 22321497 is about 281.5622578294.

The spelling of 22321497 in words is "twenty-two million, three hundred twenty-one thousand, four hundred ninety-seven".