630473101 has 4 divisors (see below), whose sum is σ = 667559772. Its totient is φ = 593386432.

The previous prime is 630473089. The next prime is 630473117. The reversal of 630473101 is 101374036.

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

It can be written as a sum of positive squares in 2 ways, for example, as 319479876 + 310993225 = 17874^2 + 17635^2 .

It is a cyclic number.

It is not a de Polignac number, because 630473101 - 2⁹ = 630472589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630473201) 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, 18543310 + ... + 18543343.

It is an arithmetic number, because the mean of its divisors is an integer number (166889943).

Almost surely, 2^630473101 is an apocalyptic number.

It is an amenable number.

630473101 is a deficient number, since it is larger than the sum of its proper divisors (37086671).

630473101 is a wasteful number, since it uses less digits than its factorization.

630473101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37086670.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 630473101 is about 25109.2234248692. The cubic root of 630473101 is about 857.4764226108.

The spelling of 630473101 in words is "six hundred thirty million, four hundred seventy-three thousand, one hundred one".