63748897 has 4 divisors (see below), whose sum is σ = 64517040. Its totient is φ = 62980756.

The previous prime is 63748879. The next prime is 63748903. The reversal of 63748897 is 79884736.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 63748897 - 2¹¹ = 63746849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63748807) 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, 383947 + ... + 384112.

It is an arithmetic number, because the mean of its divisors is an integer number (16129260).

Almost surely, 2^63748897 is an apocalyptic number.

It is an amenable number.

63748897 is a deficient number, since it is larger than the sum of its proper divisors (768143).

63748897 is an equidigital number, since it uses as much as digits as its factorization.

63748897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768142.

The product of its digits is 2032128, while the sum is 52.

The square root of 63748897 is about 7984.2906384976. The cubic root of 63748897 is about 399.4761830890.

The spelling of 63748897 in words is "sixty-three million, seven hundred forty-eight thousand, eight hundred ninety-seven".