973281 has 4 divisors (see below), whose sum is σ = 1297712. Its totient is φ = 648852.

The previous prime is 973279. The next prime is 973283. The reversal of 973281 is 182379.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 182379 = 3 ⋅60793.

It is an interprime number because it is at equal distance from previous prime (973279) and next prime (973283).

It is not a de Polignac number, because 973281 - 2¹ = 973279 is a prime.

It is a super-2 number, since 2×973281² = 1894551809922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (973283) 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, 162211 + ... + 162216.

It is an arithmetic number, because the mean of its divisors is an integer number (324428).

2⁹⁷³²⁸¹ is an apocalyptic number.

It is an amenable number.

973281 is a deficient number, since it is larger than the sum of its proper divisors (324431).

973281 is a wasteful number, since it uses less digits than its factorization.

973281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324430.

The product of its digits is 3024, while the sum is 30.

The square root of 973281 is about 986.5500494146. The cubic root of 973281 is about 99.1013145041.

The spelling of 973281 in words is "nine hundred seventy-three thousand, two hundred eighty-one".