63319394 has 4 divisors (see below), whose sum is σ = 94979094. Its totient is φ = 31659696.

The previous prime is 63319393. The next prime is 63319409. The reversal of 63319394 is 49391336.

63319394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 54096025 + 9223369 = 7355^2 + 3037^2 .

It is not an unprimeable number, because it can be changed into a prime (63319393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15829847 + ... + 15829850.

Almost surely, 2^63319394 is an apocalyptic number.

63319394 is a deficient number, since it is larger than the sum of its proper divisors (31659700).

63319394 is a wasteful number, since it uses less digits than its factorization.

63319394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31659699.

The product of its digits is 52488, while the sum is 38.

The square root of 63319394 is about 7957.3484277113. The cubic root of 63319394 is about 398.5770146177.

The spelling of 63319394 in words is "sixty-three million, three hundred nineteen thousand, three hundred ninety-four".