634699453 has 8 divisors (see below), whose sum is σ = 644582880. Its totient is φ = 624886800.

The previous prime is 634699441. The next prime is 634699469. The reversal of 634699453 is 354996436.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 634699453 - 2⁹ = 634698941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 634699397 and 634699406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634699253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526 + ... + 35632.

It is an arithmetic number, because the mean of its divisors is an integer number (80572860).

Almost surely, 2^634699453 is an apocalyptic number.

It is an amenable number.

634699453 is a deficient number, since it is larger than the sum of its proper divisors (9883427).

634699453 is a wasteful number, since it uses less digits than its factorization.

634699453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35387.

The product of its digits is 2099520, while the sum is 49.

The square root of 634699453 is about 25193.2422089734. The cubic root of 634699453 is about 859.3881771520.

The spelling of 634699453 in words is "six hundred thirty-four million, six hundred ninety-nine thousand, four hundred fifty-three".