63459539 has 12 divisors (see below), whose sum is σ = 75120528. Its totient is φ = 53251440.

The previous prime is 63459527. The next prime is 63459593. The reversal of 63459539 is 93595436.

It is not a de Polignac number, because 63459539 - 2⁴ = 63459523 is a prime.

It is a super-2 number, since 2×63459539² = 8054226180185042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63459539.

It is not an unprimeable number, because it can be changed into a prime (63459839) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18599 + ... + 21744.

It is an arithmetic number, because the mean of its divisors is an integer number (6260044).

Almost surely, 2^63459539 is an apocalyptic number.

63459539 is a deficient number, since it is larger than the sum of its proper divisors (11660989).

63459539 is a wasteful number, since it uses less digits than its factorization.

63459539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40378 (or 40367 counting only the distinct ones).

The product of its digits is 437400, while the sum is 44.

The square root of 63459539 is about 7966.1495717818. The cubic root of 63459539 is about 398.8708551624.

The spelling of 63459539 in words is "sixty-three million, four hundred fifty-nine thousand, five hundred thirty-nine".