835191493 has 4 divisors (see below), whose sum is σ = 879148960. Its totient is φ = 791234028.

The previous prime is 835191473. The next prime is 835191499. The reversal of 835191493 is 394191538.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 835191493 - 2¹³ = 835183301 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 (835191499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21978705 + ... + 21978742.

It is an arithmetic number, because the mean of its divisors is an integer number (219787240).

Almost surely, 2^835191493 is an apocalyptic number.

It is an amenable number.

835191493 is a deficient number, since it is larger than the sum of its proper divisors (43957467).

835191493 is a wasteful number, since it uses less digits than its factorization.

835191493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43957466.

The product of its digits is 116640, while the sum is 43.

The square root of 835191493 is about 28899.6798079148. The cubic root of 835191493 is about 941.7349477345.

The spelling of 835191493 in words is "eight hundred thirty-five million, one hundred ninety-one thousand, four hundred ninety-three".