974809 has 8 divisors (see below), whose sum is σ = 1109952. Its totient is φ = 847440.

The previous prime is 974803. The next prime is 974819. The reversal of 974809 is 908479.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 974809 - 2¹³ = 966617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (974803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1674 + ... + 2179.

It is an arithmetic number, because the mean of its divisors is an integer number (138744).

2⁹⁷⁴⁸⁰⁹ is an apocalyptic number.

It is an amenable number.

974809 is a deficient number, since it is larger than the sum of its proper divisors (135143).

974809 is a wasteful number, since it uses less digits than its factorization.

974809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3887.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 974809 is about 987.3241615599. The cubic root of 974809 is about 99.1531486725.

The spelling of 974809 in words is "nine hundred seventy-four thousand, eight hundred nine".