826431 has 8 divisors (see below), whose sum is σ = 1115520. Its totient is φ = 544152.

The previous prime is 826411. The next prime is 826453. The reversal of 826431 is 134628.

It is a happy number.

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

It is not a de Polignac number, because 826431 - 2⁷ = 826303 is a prime.

It is a super-2 number, since 2×826431² = 1365976395522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (826411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1411 + ... + 1908.

It is an arithmetic number, because the mean of its divisors is an integer number (139440).

2⁸²⁶⁴³¹ is an apocalyptic number.

826431 is a deficient number, since it is larger than the sum of its proper divisors (289089).

826431 is a wasteful number, since it uses less digits than its factorization.

826431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3405.

The product of its digits is 1152, while the sum is 24.

The square root of 826431 is about 909.0825045066. The cubic root of 826431 is about 93.8430684664.

The spelling of 826431 in words is "eight hundred twenty-six thousand, four hundred thirty-one".