442713653 has 2 divisors, whose sum is σ = 442713654. Its totient is φ = 442713652.

The previous prime is 442713619. The next prime is 442713671. The reversal of 442713653 is 356317244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 440286289 + 2427364 = 20983^2 + 1558^2 .

It is a cyclic number.

It is not a de Polignac number, because 442713653 - 2⁶ = 442713589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442713253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221356826 + 221356827.

It is an arithmetic number, because the mean of its divisors is an integer number (221356827).

Almost surely, 2^442713653 is an apocalyptic number.

It is an amenable number.

442713653 is a deficient number, since it is larger than the sum of its proper divisors (1).

442713653 is an equidigital number, since it uses as much as digits as its factorization.

442713653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 35.

The square root of 442713653 is about 21040.7617019917. The cubic root of 442713653 is about 762.1509088394.

The spelling of 442713653 in words is "four hundred forty-two million, seven hundred thirteen thousand, six hundred fifty-three".