627630481 has 4 divisors (see below), whose sum is σ = 627787264. Its totient is φ = 627473700.

The previous prime is 627630461. The next prime is 627630511. The reversal of 627630481 is 184036726.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 627630481 - 2⁹ = 627629969 is a prime.

It is a super-2 number, since 2×627630481² = 787840041360582722, which contains 22 as substring.

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 627630481.

It is not an unprimeable number, because it can be changed into a prime (627630461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72225 + ... + 80446.

It is an arithmetic number, because the mean of its divisors is an integer number (156946816).

Almost surely, 2^627630481 is an apocalyptic number.

It is an amenable number.

627630481 is a deficient number, since it is larger than the sum of its proper divisors (156783).

627630481 is a wasteful number, since it uses less digits than its factorization.

627630481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156782.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 627630481 is about 25052.5543807413. The cubic root of 627630481 is about 856.1857769438.

The spelling of 627630481 in words is "six hundred twenty-seven million, six hundred thirty thousand, four hundred eighty-one".