22649691 has 16 divisors (see below), whose sum is σ = 32531840. Its totient is φ = 13970880.

The previous prime is 22649689. The next prime is 22649701. The reversal of 22649691 is 19694622.

It is not a de Polignac number, because 22649691 - 2¹ = 22649689 is a prime.

It is a super-3 number, since 3×22649691³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22649651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2170 + ... + 7071.

It is an arithmetic number, because the mean of its divisors is an integer number (2033240).

Almost surely, 2^22649691 is an apocalyptic number.

22649691 is a deficient number, since it is larger than the sum of its proper divisors (9882149).

22649691 is a wasteful number, since it uses less digits than its factorization.

22649691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9306.

The product of its digits is 46656, while the sum is 39.

The square root of 22649691 is about 4759.1691501774. The cubic root of 22649691 is about 282.9354903801.

The spelling of 22649691 in words is "twenty-two million, six hundred forty-nine thousand, six hundred ninety-one".