630466877 has 4 divisors (see below), whose sum is σ = 630857436. Its totient is φ = 630076320.

The previous prime is 630466843. The next prime is 630466891. The reversal of 630466877 is 778664036.

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 546671161 + 83795716 = 23381^2 + 9154^2 .

It is a cyclic number.

It is not a de Polignac number, because 630466877 - 2²⁶ = 563358013 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 (630466807) 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, 192848 + ... + 196089.

It is an arithmetic number, because the mean of its divisors is an integer number (157714359).

Almost surely, 2^630466877 is an apocalyptic number.

It is an amenable number.

630466877 is a deficient number, since it is larger than the sum of its proper divisors (390559).

630466877 is a wasteful number, since it uses less digits than its factorization.

630466877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390558.

The product of its (nonzero) digits is 1016064, while the sum is 47.

The square root of 630466877 is about 25109.0994860429. The cubic root of 630466877 is about 857.4736009462.

The spelling of 630466877 in words is "six hundred thirty million, four hundred sixty-six thousand, eight hundred seventy-seven".