812354 has 4 divisors (see below), whose sum is σ = 1218534. Its totient is φ = 406176.

The previous prime is 812353. The next prime is 812359. The reversal of 812354 is 453218.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 453218 = 2 ⋅226609.

It can be written as a sum of positive squares in only one way, i.e., 458329 + 354025 = 677^2 + 595^2 .

It is a plaindrome in base 13.

It is a nialpdrome in base 16.

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (812351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203087 + ... + 203090.

2⁸¹²³⁵⁴ is an apocalyptic number.

812354 is a deficient number, since it is larger than the sum of its proper divisors (406180).

812354 is a wasteful number, since it uses less digits than its factorization.

812354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406179.

The product of its digits is 960, while the sum is 23.

The square root of 812354 is about 901.3068289989. The cubic root of 812354 is about 93.3071893894.

The spelling of 812354 in words is "eight hundred twelve thousand, three hundred fifty-four".