23228977 has 2 divisors, whose sum is σ = 23228978. Its totient is φ = 23228976.

The previous prime is 23228969. The next prime is 23228981. The reversal of 23228977 is 77982232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18524416 + 4704561 = 4304^2 + 2169^2 .

It is a cyclic number.

It is not a de Polignac number, because 23228977 - 2³ = 23228969 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23228927) 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, 11614488 + 11614489.

It is an arithmetic number, because the mean of its divisors is an integer number (11614489).

Almost surely, 2^23228977 is an apocalyptic number.

It is an amenable number.

23228977 is a deficient number, since it is larger than the sum of its proper divisors (1).

23228977 is an equidigital number, since it uses as much as digits as its factorization.

23228977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 40.

The square root of 23228977 is about 4819.6449039322. The cubic root of 23228977 is about 285.3273227048.

The spelling of 23228977 in words is "twenty-three million, two hundred twenty-eight thousand, nine hundred seventy-seven".