634891334 has 24 divisors (see below), whose sum is σ = 1208533608. Its totient is φ = 247359840.

The previous prime is 634891331. The next prime is 634891337. The reversal of 634891334 is 433198436.

It is an interprime number because it is at equal distance from previous prime (634891331) and next prime (634891337).

It is a junction number, because it is equal to n+sod(n) for n = 634891291 and 634891300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634891331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 293399 + ... + 295554.

It is an arithmetic number, because the mean of its divisors is an integer number (50355567).

Almost surely, 2^634891334 is an apocalyptic number.

634891334 is a deficient number, since it is larger than the sum of its proper divisors (573642274).

634891334 is a wasteful number, since it uses less digits than its factorization.

634891334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588980 (or 588973 counting only the distinct ones).

The product of its digits is 186624, while the sum is 41.

The square root of 634891334 is about 25197.0501051214. The cubic root of 634891334 is about 859.4747712333.

The spelling of 634891334 in words is "six hundred thirty-four million, eight hundred ninety-one thousand, three hundred thirty-four".