634739383 has 4 divisors (see below), whose sum is σ = 649500808. Its totient is φ = 619977960.

The previous prime is 634739381. The next prime is 634739401. The reversal of 634739383 is 383937436.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 634739383 - 2¹ = 634739381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634739381) 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, 7380648 + ... + 7380733.

It is an arithmetic number, because the mean of its divisors is an integer number (162375202).

Almost surely, 2^634739383 is an apocalyptic number.

634739383 is a deficient number, since it is larger than the sum of its proper divisors (14761425).

634739383 is a wasteful number, since it uses less digits than its factorization.

634739383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14761424.

The product of its digits is 979776, while the sum is 46.

The square root of 634739383 is about 25194.0346709295. The cubic root of 634739383 is about 859.4061986214.

The spelling of 634739383 in words is "six hundred thirty-four million, seven hundred thirty-nine thousand, three hundred eighty-three".