630072277 has 4 divisors (see below), whose sum is σ = 634301100. Its totient is φ = 625843456.

The previous prime is 630072259. The next prime is 630072283. The reversal of 630072277 is 772270036.

630072277 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 244578321 + 385493956 = 15639^2 + 19634^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630072277 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 (630072217) 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, 2114188 + ... + 2114485.

It is an arithmetic number, because the mean of its divisors is an integer number (158575275).

Almost surely, 2^630072277 is an apocalyptic number.

It is an amenable number.

630072277 is a deficient number, since it is larger than the sum of its proper divisors (4228823).

630072277 is a wasteful number, since it uses less digits than its factorization.

630072277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4228822.

The product of its (nonzero) digits is 24696, while the sum is 34.

The square root of 630072277 is about 25101.2405470327. The cubic root of 630072277 is about 857.2946702145.

The spelling of 630072277 in words is "six hundred thirty million, seventy-two thousand, two hundred seventy-seven".