634927 has 2 divisors, whose sum is σ = 634928. Its totient is φ = 634926.

The previous prime is 634903. The next prime is 634937. The reversal of 634927 is 729436.

634927 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634927 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

634927 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317463 + 317464.

It is an arithmetic number, because the mean of its divisors is an integer number (317464).

2⁶³⁴⁹²⁷ is an apocalyptic number.

634927 is a deficient number, since it is larger than the sum of its proper divisors (1).

634927 is an equidigital number, since it uses as much as digits as its factorization.

634927 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 31.

The square root of 634927 is about 796.8230669352. The cubic root of 634927 is about 85.9490865039.

It can be divided in two parts, 63492 and 7, that multiplied together give a palindrome (444444).

The spelling of 634927 in words is "six hundred thirty-four thousand, nine hundred twenty-seven".