63722403 has 8 divisors (see below), whose sum is σ = 94403600. Its totient is φ = 42481584.

The previous prime is 63722401. The next prime is 63722413. The reversal of 63722403 is 30422736.

63722403 is a `hidden beast` number, since 637 + 2 + 24 + 0 + 3 = 666.

It is not a de Polignac number, because 63722403 - 2¹ = 63722401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2360089 = 63722403 / (6 + 3 + 7 + 2 + 2 + 4 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63722401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1180018 + ... + 1180071.

It is an arithmetic number, because the mean of its divisors is an integer number (11800450).

Almost surely, 2^63722403 is an apocalyptic number.

63722403 is a deficient number, since it is larger than the sum of its proper divisors (30681197).

63722403 is a wasteful number, since it uses less digits than its factorization.

63722403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360098 (or 2360092 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 63722403 is about 7982.6313330881. The cubic root of 63722403 is about 399.4208347404.

The spelling of 63722403 in words is "sixty-three million, seven hundred twenty-two thousand, four hundred three".