22734637 has 4 divisors (see below), whose sum is σ = 23518620. Its totient is φ = 21950656.

The previous prime is 22734619. The next prime is 22734653. The reversal of 22734637 is 73643722.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11249316 + 11485321 = 3354^2 + 3389^2 .

It is a cyclic number.

It is not a de Polignac number, because 22734637 - 2²³ = 14346029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22734667) 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, 391948 + ... + 392005.

It is an arithmetic number, because the mean of its divisors is an integer number (5879655).

Almost surely, 2^22734637 is an apocalyptic number.

It is an amenable number.

22734637 is a deficient number, since it is larger than the sum of its proper divisors (783983).

22734637 is an equidigital number, since it uses as much as digits as its factorization.

22734637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783982.

The product of its digits is 42336, while the sum is 34.

The square root of 22734637 is about 4768.0852551103. The cubic root of 22734637 is about 283.2887586933.

The spelling of 22734637 in words is "twenty-two million, seven hundred thirty-four thousand, six hundred thirty-seven".