23859049 has 2 divisors, whose sum is σ = 23859050. Its totient is φ = 23859048.

The previous prime is 23859047. The next prime is 23859067. The reversal of 23859049 is 94095832.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12299049 + 11560000 = 3507^2 + 3400^2 .

It is a cyclic number.

It is not a de Polignac number, because 23859049 - 2¹ = 23859047 is a prime.

Together with 23859047, it forms a pair of twin primes.

It is equal to p_1498783 and since 23859049 and 1498783 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (23859047) 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, 11929524 + 11929525.

It is an arithmetic number, because the mean of its divisors is an integer number (11929525).

Almost surely, 2^23859049 is an apocalyptic number.

It is an amenable number.

23859049 is a deficient number, since it is larger than the sum of its proper divisors (1).

23859049 is an equidigital number, since it uses as much as digits as its factorization.

23859049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 23859049 is about 4884.5725503876. The cubic root of 23859049 is about 287.8841202082.

The spelling of 23859049 in words is "twenty-three million, eight hundred fifty-nine thousand, forty-nine".