810074 has 4 divisors (see below), whose sum is σ = 1215114. Its totient is φ = 405036.

The previous prime is 810071. The next prime is 810079. The reversal of 810074 is 470018.

It is a happy number.

810074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 470018 = 2 ⋅235009.

It can be written as a sum of positive squares in only one way, i.e., 734449 + 75625 = 857^2 + 275^2 .

It is not an unprimeable number, because it can be changed into a prime (810071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202517 + ... + 202520.

2⁸¹⁰⁰⁷⁴ is an apocalyptic number.

810074 is a deficient number, since it is larger than the sum of its proper divisors (405040).

810074 is a wasteful number, since it uses less digits than its factorization.

810074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405039.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 810074 is about 900.0411101722. The cubic root of 810074 is about 93.2198137984.

The spelling of 810074 in words is "eight hundred ten thousand, seventy-four".