63398479 has 4 divisors (see below), whose sum is σ = 63431784. Its totient is φ = 63365176.

The previous prime is 63398453. The next prime is 63398513. The reversal of 63398479 is 97489336.

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

It is a cyclic number.

It is not a de Polignac number, because 63398479 - 2⁹ = 63397967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63398579) 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, 13612 + ... + 17665.

It is an arithmetic number, because the mean of its divisors is an integer number (15857946).

Almost surely, 2^63398479 is an apocalyptic number.

63398479 is a deficient number, since it is larger than the sum of its proper divisors (33305).

63398479 is a wasteful number, since it uses less digits than its factorization.

63398479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33304.

The product of its digits is 979776, while the sum is 49.

The square root of 63398479 is about 7962.3161831216. The cubic root of 63398479 is about 398.7428845407.

The spelling of 63398479 in words is "sixty-three million, three hundred ninety-eight thousand, four hundred seventy-nine".