22716977 has 2 divisors, whose sum is σ = 22716978. Its totient is φ = 22716976.

The previous prime is 22716973. The next prime is 22716997. The reversal of 22716977 is 77961722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12988816 + 9728161 = 3604^2 + 3119^2 .

It is a cyclic number.

It is not a de Polignac number, because 22716977 - 2² = 22716973 is a prime.

It is a super-2 number, since 2×22716977² = 1032122088037058, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22716971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11358488 + 11358489.

It is an arithmetic number, because the mean of its divisors is an integer number (11358489).

Almost surely, 2^22716977 is an apocalyptic number.

It is an amenable number.

22716977 is a deficient number, since it is larger than the sum of its proper divisors (1).

22716977 is an equidigital number, since it uses as much as digits as its factorization.

22716977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74088, while the sum is 41.

The square root of 22716977 is about 4766.2329989206. The cubic root of 22716977 is about 283.2153878945.

The spelling of 22716977 in words is "twenty-two million, seven hundred sixteen thousand, nine hundred seventy-seven".