634311485 has 16 divisors (see below), whose sum is σ = 802320960. Its totient is φ = 480090240.

The previous prime is 634311479. The next prime is 634311487. The reversal of 634311485 is 584113436.

It is not a de Polignac number, because 634311485 - 2¹⁰ = 634310461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634311487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72929 + ... + 81161.

It is an arithmetic number, because the mean of its divisors is an integer number (50145060).

Almost surely, 2^634311485 is an apocalyptic number.

It is an amenable number.

634311485 is a deficient number, since it is larger than the sum of its proper divisors (168009475).

634311485 is a wasteful number, since it uses less digits than its factorization.

634311485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9068.

The product of its digits is 34560, while the sum is 35.

The square root of 634311485 is about 25185.5411893412. The cubic root of 634311485 is about 859.2130375283.

The spelling of 634311485 in words is "six hundred thirty-four million, three hundred eleven thousand, four hundred eighty-five".