634351 has 4 divisors (see below), whose sum is σ = 638704. Its totient is φ = 630000.

The previous prime is 634343. The next prime is 634367. The reversal of 634351 is 153436.

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 634351 - 2³ = 634343 is a prime.

It is an Ulam number.

It is a deceptive number, since it divides R₆₃₄₃₅₀.

It is a Duffinian number.

634351 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634301) 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, 1950 + ... + 2251.

It is an arithmetic number, because the mean of its divisors is an integer number (159676).

2⁶³⁴³⁵¹ is an apocalyptic number.

634351 is a deficient number, since it is larger than the sum of its proper divisors (4353).

634351 is a wasteful number, since it uses less digits than its factorization.

634351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352.

The product of its digits is 1080, while the sum is 22.

The square root of 634351 is about 796.4615496055. The cubic root of 634351 is about 85.9230878972.

Adding to 634351 its reverse (153436), we get a palindrome (787787).

It can be divided in two parts, 63435 and 1, that added together give a palindrome (63436).

The spelling of 634351 in words is "six hundred thirty-four thousand, three hundred fifty-one".