825434797 has 4 divisors (see below), whose sum is σ = 900474336. Its totient is φ = 750395260.

The previous prime is 825434783. The next prime is 825434807. The reversal of 825434797 is 797434528.

It is a happy number.

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 825434797 - 2¹¹ = 825432749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 825434797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825434777) 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, 37519753 + ... + 37519774.

It is an arithmetic number, because the mean of its divisors is an integer number (225118584).

Almost surely, 2^825434797 is an apocalyptic number.

It is an amenable number.

825434797 is a deficient number, since it is larger than the sum of its proper divisors (75039539).

825434797 is a wasteful number, since it uses less digits than its factorization.

825434797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75039538.

The product of its digits is 1693440, while the sum is 49.

The square root of 825434797 is about 28730.3810799648. The cubic root of 825434797 is about 938.0534628702.

The spelling of 825434797 in words is "eight hundred twenty-five million, four hundred thirty-four thousand, seven hundred ninety-seven".