63239897 has 4 divisors (see below), whose sum is σ = 72274176. Its totient is φ = 54205620.

The previous prime is 63239879. The next prime is 63239899. The reversal of 63239897 is 79893236.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 63239897 - 2⁶ = 63239833 is a prime.

It is a super-3 number, since 3×63239897³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63239899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4517129 + ... + 4517142.

It is an arithmetic number, because the mean of its divisors is an integer number (18068544).

Almost surely, 2^63239897 is an apocalyptic number.

It is an amenable number.

63239897 is a deficient number, since it is larger than the sum of its proper divisors (9034279).

63239897 is an equidigital number, since it uses as much as digits as its factorization.

63239897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9034278.

The product of its digits is 489888, while the sum is 47.

The square root of 63239897 is about 7952.3516647593. The cubic root of 63239897 is about 398.4101413289.

The spelling of 63239897 in words is "sixty-three million, two hundred thirty-nine thousand, eight hundred ninety-seven".