634598843 has 4 divisors (see below), whose sum is σ = 634658328. Its totient is φ = 634539360.

The previous prime is 634598777. The next prime is 634598873. The reversal of 634598843 is 348895436.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 634598843 - 2¹⁸ = 634336699 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 634598791 and 634598800.

It is not an unprimeable number, because it can be changed into a prime (634598873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8846 + ... + 36707.

It is an arithmetic number, because the mean of its divisors is an integer number (158664582).

Almost surely, 2^634598843 is an apocalyptic number.

634598843 is a deficient number, since it is larger than the sum of its proper divisors (59485).

634598843 is a wasteful number, since it uses less digits than its factorization.

634598843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59484.

The product of its digits is 2488320, while the sum is 50.

The square root of 634598843 is about 25191.2453642133. The cubic root of 634598843 is about 859.3427658354.

The spelling of 634598843 in words is "six hundred thirty-four million, five hundred ninety-eight thousand, eight hundred forty-three".