971304 has 16 divisors (see below), whose sum is σ = 2428320. Its totient is φ = 323760.

The previous prime is 971291. The next prime is 971309. The reversal of 971304 is 403179.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 40471 = 971304 / (9 + 7 + 1 + 3 + 0 + 4).

It is not an unprimeable number, because it can be changed into a prime (971309) by changing a digit.

971304 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20212 + ... + 20259.

It is an arithmetic number, because the mean of its divisors is an integer number (151770).

2⁹⁷¹³⁰⁴ is an apocalyptic number.

It is an amenable number.

971304 is an abundant number, since it is smaller than the sum of its proper divisors (1457016).

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

971304 is a wasteful number, since it uses less digits than its factorization.

971304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40480 (or 40476 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 971304 is about 985.5475635402. The cubic root of 971304 is about 99.0341683916.

It can be divided in two parts, 971 and 304, that added together give a triangular number (1275 = T₅₀).

The spelling of 971304 in words is "nine hundred seventy-one thousand, three hundred four".