850451 has 4 divisors (see below), whose sum is σ = 971952. Its totient is φ = 728952.

The previous prime is 850439. The next prime is 850453. The reversal of 850451 is 154058.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154058 = 2 ⋅77029.

It is not a de Polignac number, because 850451 - 2⁶ = 850387 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 850451.

It is not an unprimeable number, because it can be changed into a prime (850453) 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, 60740 + ... + 60753.

It is an arithmetic number, because the mean of its divisors is an integer number (242988).

2⁸⁵⁰⁴⁵¹ is an apocalyptic number.

850451 is a deficient number, since it is larger than the sum of its proper divisors (121501).

850451 is a wasteful number, since it uses less digits than its factorization.

850451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121500.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 850451 is about 922.1990023851. The cubic root of 850451 is about 94.7435744024.

The spelling of 850451 in words is "eight hundred fifty thousand, four hundred fifty-one".