23077861 has 2 divisors, whose sum is σ = 23077862. Its totient is φ = 23077860.

The previous prime is 23077853. The next prime is 23077903. The reversal of 23077861 is 16877032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21436900 + 1640961 = 4630^2 + 1281^2 .

It is a cyclic number.

It is not a de Polignac number, because 23077861 - 2³ = 23077853 is a prime.

It is equal to p_1452868 and since 23077861 and 1452868 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23077841) 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, 11538930 + 11538931.

It is an arithmetic number, because the mean of its divisors is an integer number (11538931).

Almost surely, 2^23077861 is an apocalyptic number.

It is an amenable number.

23077861 is a deficient number, since it is larger than the sum of its proper divisors (1).

23077861 is an equidigital number, since it uses as much as digits as its factorization.

23077861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 23077861 is about 4803.9422352897. The cubic root of 23077861 is about 284.7072442660.

The spelling of 23077861 in words is "twenty-three million, seventy-seven thousand, eight hundred sixty-one".