834320251 has 4 divisors (see below), whose sum is σ = 836107272. Its totient is φ = 832533232.

The previous prime is 834320209. The next prime is 834320261. The reversal of 834320251 is 152023438.

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 834320251 - 2¹¹ = 834318203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (834320261) 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, 892810 + ... + 893743.

It is an arithmetic number, because the mean of its divisors is an integer number (209026818).

Almost surely, 2^834320251 is an apocalyptic number.

834320251 is a deficient number, since it is larger than the sum of its proper divisors (1787021).

834320251 is a wasteful number, since it uses less digits than its factorization.

834320251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787020.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 834320251 is about 28884.6023168054. The cubic root of 834320251 is about 941.4073723582.

Adding to 834320251 its reverse (152023438), we get a palindrome (986343689).

The spelling of 834320251 in words is "eight hundred thirty-four million, three hundred twenty thousand, two hundred fifty-one".