23840977 has 2 divisors, whose sum is σ = 23840978. Its totient is φ = 23840976.

The previous prime is 23840969. The next prime is 23840981. The reversal of 23840977 is 77904832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20034576 + 3806401 = 4476^2 + 1951^2 .

It is a cyclic number.

It is not a de Polignac number, because 23840977 - 2³ = 23840969 is a prime.

It is not a weakly prime, because it can be changed into another prime (23840917) 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 as a sum of consecutive naturals, namely, 11920488 + 11920489.

It is an arithmetic number, because the mean of its divisors is an integer number (11920489).

Almost surely, 2^23840977 is an apocalyptic number.

It is an amenable number.

23840977 is a deficient number, since it is larger than the sum of its proper divisors (1).

23840977 is an equidigital number, since it uses as much as digits as its factorization.

23840977 is an odious number, because the sum of its binary digits is odd.

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

The square root of 23840977 is about 4882.7222939668. The cubic root of 23840977 is about 287.8114160538.

The spelling of 23840977 in words is "twenty-three million, eight hundred forty thousand, nine hundred seventy-seven".