970731 has 16 divisors (see below), whose sum is σ = 1453600. Its totient is φ = 640224.

The previous prime is 970721. The next prime is 970747. The reversal of 970731 is 137079.

It is not a de Polignac number, because 970731 - 2⁵ = 970699 is a prime.

It is a super-2 number, since 2×970731² = 1884637348722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 970695 and 970704.

It is not an unprimeable number, because it can be changed into a prime (970721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4125 + ... + 4353.

It is an arithmetic number, because the mean of its divisors is an integer number (90850).

2⁹⁷⁰⁷³¹ is an apocalyptic number.

970731 is a deficient number, since it is larger than the sum of its proper divisors (482869).

970731 is a wasteful number, since it uses less digits than its factorization.

970731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 1323, while the sum is 27.

The square root of 970731 is about 985.2568193116. The cubic root of 970731 is about 99.0146901984.

970731 divided by its sum of digits (27) gives a palindrome (35953).

The spelling of 970731 in words is "nine hundred seventy thousand, seven hundred thirty-one".