63748378 has 4 divisors (see below), whose sum is σ = 95622570. Its totient is φ = 31874188.

The previous prime is 63748367. The next prime is 63748393. The reversal of 63748378 is 87384736.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 34187409 + 29560969 = 5847^2 + 5437^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15937093 + ... + 15937096.

Almost surely, 2^63748378 is an apocalyptic number.

63748378 is a deficient number, since it is larger than the sum of its proper divisors (31874192).

63748378 is a wasteful number, since it uses less digits than its factorization.

63748378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31874191.

The product of its digits is 677376, while the sum is 46.

The square root of 63748378 is about 7984.2581371095. The cubic root of 63748378 is about 399.4750989986.

The spelling of 63748378 in words is "sixty-three million, seven hundred forty-eight thousand, three hundred seventy-eight".