22677981 has 8 divisors (see below), whose sum is σ = 30371424. Its totient is φ = 15051600.

The previous prime is 22677953. The next prime is 22678013. The reversal of 22677981 is 18977622.

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

It is not a de Polignac number, because 22677981 - 2⁶ = 22677917 is a prime.

It is a super-2 number, since 2×22677981² = 1028581644472722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22677911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15970 + ... + 17331.

It is an arithmetic number, because the mean of its divisors is an integer number (3796428).

Almost surely, 2^22677981 is an apocalyptic number.

It is an amenable number.

22677981 is a deficient number, since it is larger than the sum of its proper divisors (7693443).

22677981 is a wasteful number, since it uses less digits than its factorization.

22677981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33531.

The product of its digits is 84672, while the sum is 42.

The square root of 22677981 is about 4762.1403801232. The cubic root of 22677981 is about 283.0532390775.

The spelling of 22677981 in words is "twenty-two million, six hundred seventy-seven thousand, nine hundred eighty-one".