22649087 has 4 divisors (see below), whose sum is σ = 23430120. Its totient is φ = 21868056.

The previous prime is 22649059. The next prime is 22649119. The reversal of 22649087 is 78094622.

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 22649087 - 2²⁴ = 5871871 is a prime.

It is a super-2 number, since 2×22649087² = 1025962283867138, which contains 22 as substring.

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 22649087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22649017) 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, 390473 + ... + 390530.

It is an arithmetic number, because the mean of its divisors is an integer number (5857530).

Almost surely, 2^22649087 is an apocalyptic number.

22649087 is a deficient number, since it is larger than the sum of its proper divisors (781033).

22649087 is an equidigital number, since it uses as much as digits as its factorization.

22649087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781032.

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

The square root of 22649087 is about 4759.1056933000. The cubic root of 22649087 is about 282.9329753413.

The spelling of 22649087 in words is "twenty-two million, six hundred forty-nine thousand, eighty-seven".