63772473 has 4 divisors (see below), whose sum is σ = 85029968. Its totient is φ = 42514980.

The previous prime is 63772463. The next prime is 63772477. The reversal of 63772473 is 37427736.

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 not a de Polignac number, because 63772473 - 2⁵ = 63772441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63772477) 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, 10628743 + ... + 10628748.

It is an arithmetic number, because the mean of its divisors is an integer number (21257492).

Almost surely, 2^63772473 is an apocalyptic number.

It is an amenable number.

63772473 is a deficient number, since it is larger than the sum of its proper divisors (21257495).

63772473 is a wasteful number, since it uses less digits than its factorization.

63772473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21257494.

The product of its digits is 148176, while the sum is 39.

The square root of 63772473 is about 7985.7669011811. The cubic root of 63772473 is about 399.5254225800.

The spelling of 63772473 in words is "sixty-three million, seven hundred seventy-two thousand, four hundred seventy-three".