973861 has 4 divisors (see below), whose sum is σ = 1112992. Its totient is φ = 834732.

The previous prime is 973853. The next prime is 973891. The reversal of 973861 is 168379.

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: 168379 = 163 ⋅1033.

It is a cyclic number.

It is not a de Polignac number, because 973861 - 2³ = 973853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (973801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69555 + ... + 69568.

It is an arithmetic number, because the mean of its divisors is an integer number (278248).

2⁹⁷³⁸⁶¹ is an apocalyptic number.

It is an amenable number.

973861 is a deficient number, since it is larger than the sum of its proper divisors (139131).

973861 is a wasteful number, since it uses less digits than its factorization.

973861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139130.

The product of its digits is 9072, while the sum is 34.

The square root of 973861 is about 986.8439592965. The cubic root of 973861 is about 99.1209961612.

The spelling of 973861 in words is "nine hundred seventy-three thousand, eight hundred sixty-one".