42972959 has 2 divisors, whose sum is σ = 42972960. Its totient is φ = 42972958.

The previous prime is 42972911. The next prime is 42972967. The reversal of 42972959 is 95927924.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42972959 - 2⁸ = 42972703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42977959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21486479 + 21486480.

It is an arithmetic number, because the mean of its divisors is an integer number (21486480).

Almost surely, 2^42972959 is an apocalyptic number.

42972959 is a deficient number, since it is larger than the sum of its proper divisors (1).

42972959 is an equidigital number, since it uses as much as digits as its factorization.

42972959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 47.

The square root of 42972959 is about 6555.3763431248. The cubic root of 42972959 is about 350.2663523547.

The spelling of 42972959 in words is "forty-two million, nine hundred seventy-two thousand, nine hundred fifty-nine".