974820 has 96 divisors (see below), whose sum is σ = 3419136. Its totient is φ = 201600.

The previous prime is 974819. The next prime is 974821. The reversal of 974820 is 28479.

It is an interprime number because it is at equal distance from previous prime (974819) and next prime (974821).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 974820.

It is not an unprimeable number, because it can be changed into a prime (974821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4515 + ... + 4725.

It is an arithmetic number, because the mean of its divisors is an integer number (35616).

2⁹⁷⁴⁸²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 974820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1709568).

974820 is an abundant number, since it is smaller than the sum of its proper divisors (2444316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

974820 is a wasteful number, since it uses less digits than its factorization.

974820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 974820 is about 987.3297321564. The cubic root of 974820 is about 99.1535216278.

It can be divided in two parts, 9 and 74820, that multiplied together give a triangular number (673380 = T₁₁₆₀).

The spelling of 974820 in words is "nine hundred seventy-four thousand, eight hundred twenty".