402834823 has 4 divisors (see below), whose sum is σ = 402931800. Its totient is φ = 402737848.

The previous prime is 402834797. The next prime is 402834829. The reversal of 402834823 is 328438204.

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 402834823 - 2¹³ = 402826631 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 (402834829) 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, 41965 + ... + 50662.

It is an arithmetic number, because the mean of its divisors is an integer number (100732950).

Almost surely, 2^402834823 is an apocalyptic number.

402834823 is a deficient number, since it is larger than the sum of its proper divisors (96977).

402834823 is an equidigital number, since it uses as much as digits as its factorization.

402834823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96976.

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 402834823 is about 20070.7454520254. The cubic root of 402834823 is about 738.5428001440.

The spelling of 402834823 in words is "four hundred two million, eight hundred thirty-four thousand, eight hundred twenty-three".