634958387 has 8 divisors (see below), whose sum is σ = 726149376. Its totient is φ = 543888072.

The previous prime is 634958377. The next prime is 634958419. The reversal of 634958387 is 783859436.

634958387 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 634958387 - 2⁶ = 634958323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634958377) 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, 18593 + ... + 40194.

It is an arithmetic number, because the mean of its divisors is an integer number (90768672).

Almost surely, 2^634958387 is an apocalyptic number.

634958387 is a deficient number, since it is larger than the sum of its proper divisors (91190989).

634958387 is a wasteful number, since it uses less digits than its factorization.

634958387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60337.

The product of its digits is 4354560, while the sum is 53.

The square root of 634958387 is about 25198.3806424143. The cubic root of 634958387 is about 859.5050275045.

The spelling of 634958387 in words is "six hundred thirty-four million, nine hundred fifty-eight thousand, three hundred eighty-seven".