22316977 has 2 divisors, whose sum is σ = 22316978. Its totient is φ = 22316976.

The previous prime is 22316951. The next prime is 22316981. The reversal of 22316977 is 77961322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19044496 + 3272481 = 4364^2 + 1809^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22316977 is a prime.

It is a super-3 number, since 3×22316977³ (a number of 23 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (22316677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11158488 + 11158489.

It is an arithmetic number, because the mean of its divisors is an integer number (11158489).

Almost surely, 2^22316977 is an apocalyptic number.

It is an amenable number.

22316977 is a deficient number, since it is larger than the sum of its proper divisors (1).

22316977 is an equidigital number, since it uses as much as digits as its factorization.

22316977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 37.

The square root of 22316977 is about 4724.0847790868. The cubic root of 22316977 is about 281.5432515277.

The spelling of 22316977 in words is "twenty-two million, three hundred sixteen thousand, nine hundred seventy-seven".