630087213 has 32 divisors (see below), whose sum is σ = 989181952. Its totient is φ = 349272000.

The previous prime is 630087197. The next prime is 630087251. The reversal of 630087213 is 312780036.

It is not a de Polignac number, because 630087213 - 2⁴ = 630087197 is a prime.

It is a super-2 number, since 2×630087213² = 794019791972214738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630087613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134043 + ... + 138663.

It is an arithmetic number, because the mean of its divisors is an integer number (30911936).

Almost surely, 2^630087213 is an apocalyptic number.

It is an amenable number.

630087213 is a deficient number, since it is larger than the sum of its proper divisors (359094739).

630087213 is a wasteful number, since it uses less digits than its factorization.

630087213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4825.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 630087213 is about 25101.5380604456. The cubic root of 630087213 is about 857.3014442797.

The spelling of 630087213 in words is "six hundred thirty million, eighty-seven thousand, two hundred thirteen".