63938897 has 8 divisors (see below), whose sum is σ = 70156800. Its totient is φ = 57788560.

The previous prime is 63938851. The next prime is 63938909. The reversal of 63938897 is 79883936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63938897 - 2¹⁴ = 63922513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63938297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14897 + ... + 18702.

It is an arithmetic number, because the mean of its divisors is an integer number (8769600).

Almost surely, 2^63938897 is an apocalyptic number.

It is an amenable number.

63938897 is a deficient number, since it is larger than the sum of its proper divisors (6217903).

63938897 is a wasteful number, since it uses less digits than its factorization.

63938897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33783.

The product of its digits is 1959552, while the sum is 53.

The square root of 63938897 is about 7996.1801505469. The cubic root of 63938897 is about 399.8726615499.

The spelling of 63938897 in words is "sixty-three million, nine hundred thirty-eight thousand, eight hundred ninety-seven".