15434423 has 2 divisors, whose sum is σ = 15434424. Its totient is φ = 15434422.

The previous prime is 15434417. The next prime is 15434527. The reversal of 15434423 is 32443451.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15434423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15434392 and 15434401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15434123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7717211 + 7717212.

It is an arithmetic number, because the mean of its divisors is an integer number (7717212).

Almost surely, 2^15434423 is an apocalyptic number.

15434423 is a deficient number, since it is larger than the sum of its proper divisors (1).

15434423 is an equidigital number, since it uses as much as digits as its factorization.

15434423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 26.

The square root of 15434423 is about 3928.6668222184. Note that the first 3 decimals coincide. The cubic root of 15434423 is about 248.9794287398.

Adding to 15434423 its reverse (32443451), we get a palindrome (47877874).

Subtracting 15434423 from its reverse (32443451), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 15434423 in words is "fifteen million, four hundred thirty-four thousand, four hundred twenty-three".