630920487 has 8 divisors (see below), whose sum is σ = 841694080. Its totient is φ = 420380280.

The previous prime is 630920461. The next prime is 630920501. The reversal of 630920487 is 784029036.

630920487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 630920487 - 2¹¹ = 630918439 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 (630920417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51937 + ... + 62922.

It is an arithmetic number, because the mean of its divisors is an integer number (105211760).

Almost surely, 2^630920487 is an apocalyptic number.

630920487 is a deficient number, since it is larger than the sum of its proper divisors (210773593).

630920487 is a wasteful number, since it uses less digits than its factorization.

630920487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116693.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 630920487 is about 25118.1306430236. The cubic root of 630920487 is about 857.6791974486.

It can be divided in two parts, 6309 and 20487, that added together give a triangular number (26796 = T₂₃₁).

The spelling of 630920487 in words is "six hundred thirty million, nine hundred twenty thousand, four hundred eighty-seven".