429976523 has 2 divisors, whose sum is σ = 429976524. Its totient is φ = 429976522.

The previous prime is 429976501. The next prime is 429976531. The reversal of 429976523 is 325679924.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 429976523 - 2¹² = 429972427 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (429976423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214988261 + 214988262.

It is an arithmetic number, because the mean of its divisors is an integer number (214988262).

Almost surely, 2^429976523 is an apocalyptic number.

429976523 is a deficient number, since it is larger than the sum of its proper divisors (1).

429976523 is an equidigital number, since it uses as much as digits as its factorization.

429976523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 47.

The square root of 429976523 is about 20735.8752648640. The cubic root of 429976523 is about 754.7704946908.

The spelling of 429976523 in words is "four hundred twenty-nine million, nine hundred seventy-six thousand, five hundred twenty-three".