429497557 has 2 divisors, whose sum is σ = 429497558. Its totient is φ = 429497556.

The previous prime is 429497543. The next prime is 429497573. The reversal of 429497557 is 755794924.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 327103396 + 102394161 = 18086^2 + 10119^2 .

It is a cyclic number.

It is not a de Polignac number, because 429497557 - 2⁷ = 429497429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (429497587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214748778 + 214748779.

It is an arithmetic number, because the mean of its divisors is an integer number (214748779).

Almost surely, 2^429497557 is an apocalyptic number.

It is an amenable number.

429497557 is a deficient number, since it is larger than the sum of its proper divisors (1).

429497557 is an equidigital number, since it uses as much as digits as its factorization.

429497557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3175200, while the sum is 52.

The square root of 429497557 is about 20724.3228357406. The cubic root of 429497557 is about 754.4901354144.

The spelling of 429497557 in words is "four hundred twenty-nine million, four hundred ninety-seven thousand, five hundred fifty-seven".