23491829 has 2 divisors, whose sum is σ = 23491830. Its totient is φ = 23491828.

The previous prime is 23491823. The next prime is 23491859. The reversal of 23491829 is 92819432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21996100 + 1495729 = 4690^2 + 1223^2 .

It is a cyclic number.

It is not a de Polignac number, because 23491829 - 2⁴ = 23491813 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23491792 and 23491801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23491823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11745914 + 11745915.

It is an arithmetic number, because the mean of its divisors is an integer number (11745915).

Almost surely, 2^23491829 is an apocalyptic number.

It is an amenable number.

23491829 is a deficient number, since it is larger than the sum of its proper divisors (1).

23491829 is an equidigital number, since it uses as much as digits as its factorization.

23491829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 38.

The square root of 23491829 is about 4846.8370098447. The cubic root of 23491829 is about 286.3995141958.

The spelling of 23491829 in words is "twenty-three million, four hundred ninety-one thousand, eight hundred twenty-nine".