872435 has 4 divisors (see below), whose sum is σ = 1046928. Its totient is φ = 697944.

The previous prime is 872429. The next prime is 872437. The reversal of 872435 is 534278.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 534278 = 2 ⋅267139.

It is a cyclic number.

It is not a de Polignac number, because 872435 - 2⁴ = 872419 is a prime.

It is a super-2 number, since 2×872435² = 1522285658450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 872398 and 872407.

It is not an unprimeable number, because it can be changed into a prime (872437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87239 + ... + 87248.

It is an arithmetic number, because the mean of its divisors is an integer number (261732).

2⁸⁷²⁴³⁵ is an apocalyptic number.

872435 is a deficient number, since it is larger than the sum of its proper divisors (174493).

872435 is a wasteful number, since it uses less digits than its factorization.

872435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174492.

The product of its digits is 6720, while the sum is 29.

The square root of 872435 is about 934.0422902631. The cubic root of 872435 is about 95.5530073134.

The spelling of 872435 in words is "eight hundred seventy-two thousand, four hundred thirty-five".