63321473 has 4 divisors (see below), whose sum is σ = 63357888. Its totient is φ = 63285060.

The previous prime is 63321469. The next prime is 63321491. The reversal of 63321473 is 37412336.

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 63321473 - 2² = 63321469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63321443) 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, 15461 + ... + 19122.

It is an arithmetic number, because the mean of its divisors is an integer number (15839472).

Almost surely, 2^63321473 is an apocalyptic number.

It is an amenable number.

63321473 is a deficient number, since it is larger than the sum of its proper divisors (36415).

63321473 is a wasteful number, since it uses less digits than its factorization.

63321473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36414.

The product of its digits is 9072, while the sum is 29.

The square root of 63321473 is about 7957.4790606071. The cubic root of 63321473 is about 398.5813768017.

The spelling of 63321473 in words is "sixty-three million, three hundred twenty-one thousand, four hundred seventy-three".