630626237 has 8 divisors (see below), whose sum is σ = 667983096. Its totient is φ = 593298432.

The previous prime is 630626209. The next prime is 630626239. The reversal of 630626237 is 732626036.

It can be written as a sum of positive squares in 4 ways, for example, as 231465796 + 399160441 = 15214^2 + 19979^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 630626237 - 2¹⁴ = 630609853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 630626197 and 630626206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630626239) 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, 50723 + ... + 61919.

It is an arithmetic number, because the mean of its divisors is an integer number (83497887).

Almost surely, 2^630626237 is an apocalyptic number.

It is an amenable number.

630626237 is a deficient number, since it is larger than the sum of its proper divisors (37356859).

630626237 is a wasteful number, since it uses less digits than its factorization.

630626237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14527.

The product of its (nonzero) digits is 54432, while the sum is 35.

The square root of 630626237 is about 25112.2726370992. The cubic root of 630626237 is about 857.5458413162.

The spelling of 630626237 in words is "six hundred thirty million, six hundred twenty-six thousand, two hundred thirty-seven".