63431603 has 4 divisors (see below), whose sum is σ = 63458328. Its totient is φ = 63404880.

The previous prime is 63431591. The next prime is 63431651. The reversal of 63431603 is 30613436.

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 63431603 - 2⁴ = 63431587 is a prime.

It is a super-3 number, since 3×63431603³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63431503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9413 + ... + 14678.

It is an arithmetic number, because the mean of its divisors is an integer number (15864582).

Almost surely, 2^63431603 is an apocalyptic number.

63431603 is a deficient number, since it is larger than the sum of its proper divisors (26725).

63431603 is a wasteful number, since it uses less digits than its factorization.

63431603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26724.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 63431603 is about 7964.3959595188. The cubic root of 63431603 is about 398.8123165939.

The spelling of 63431603 in words is "sixty-three million, four hundred thirty-one thousand, six hundred three".