630027865 has 4 divisors (see below), whose sum is σ = 756033444. Its totient is φ = 504022288.

The previous prime is 630027847. The next prime is 630027869. The reversal of 630027865 is 568720036.

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 126967824 + 503060041 = 11268^2 + 22429^2 .

It is a cyclic number.

It is not a de Polignac number, because 630027865 - 2⁵ = 630027833 is a prime.

It is a super-2 number, since 2×630027865² = 793870221352916450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630027869) 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, 63002782 + ... + 63002791.

It is an arithmetic number, because the mean of its divisors is an integer number (189008361).

Almost surely, 2^630027865 is an apocalyptic number.

It is an amenable number.

630027865 is a deficient number, since it is larger than the sum of its proper divisors (126005579).

630027865 is a wasteful number, since it uses less digits than its factorization.

630027865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126005578.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 630027865 is about 25100.3558739712. The cubic root of 630027865 is about 857.2745269881.

The spelling of 630027865 in words is "six hundred thirty million, twenty-seven thousand, eight hundred sixty-five".