542429647 has 2 divisors, whose sum is σ = 542429648. Its totient is φ = 542429646.

The previous prime is 542429633. The next prime is 542429653. The reversal of 542429647 is 746924245.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542429647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542429627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271214823 + 271214824.

It is an arithmetic number, because the mean of its divisors is an integer number (271214824).

Almost surely, 2^542429647 is an apocalyptic number.

542429647 is a deficient number, since it is larger than the sum of its proper divisors (1).

542429647 is an equidigital number, since it uses as much as digits as its factorization.

542429647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 43.

The square root of 542429647 is about 23290.1190851399. The cubic root of 542429647 is about 815.5447683287.

The spelling of 542429647 in words is "five hundred forty-two million, four hundred twenty-nine thousand, six hundred forty-seven".