42964997 has 2 divisors, whose sum is σ = 42964998. Its totient is φ = 42964996.

The previous prime is 42964963. The next prime is 42965009. The reversal of 42964997 is 79946924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26204161 + 16760836 = 5119^2 + 4094^2 .

It is a cyclic number.

It is not a de Polignac number, because 42964997 - 2²⁰ = 41916421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42964937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21482498 + 21482499.

It is an arithmetic number, because the mean of its divisors is an integer number (21482499).

Almost surely, 2^42964997 is an apocalyptic number.

It is an amenable number.

42964997 is a deficient number, since it is larger than the sum of its proper divisors (1).

42964997 is an equidigital number, since it uses as much as digits as its factorization.

42964997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 50.

The square root of 42964997 is about 6554.7690272045. The cubic root of 42964997 is about 350.2447186497.

The spelling of 42964997 in words is "forty-two million, nine hundred sixty-four thousand, nine hundred ninety-seven".