631927103 has 4 divisors (see below), whose sum is σ = 634686840. Its totient is φ = 629167368.

The previous prime is 631927091. The next prime is 631927117. The reversal of 631927103 is 301729136.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-631927103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 631927103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631927123) 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, 1379525 + ... + 1379982.

It is an arithmetic number, because the mean of its divisors is an integer number (158671710).

Almost surely, 2^631927103 is an apocalyptic number.

631927103 is a deficient number, since it is larger than the sum of its proper divisors (2759737).

631927103 is a wasteful number, since it uses less digits than its factorization.

631927103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759736.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 631927103 is about 25138.1602946596. The cubic root of 631927103 is about 858.1350894747.

The spelling of 631927103 in words is "six hundred thirty-one million, nine hundred twenty-seven thousand, one hundred three".