7312971 has 4 divisors (see below), whose sum is σ = 9750632. Its totient is φ = 4875312.

The previous prime is 7312969. The next prime is 7312979. The reversal of 7312971 is 1792137.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7312971 - 2¹ = 7312969 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (7312979) 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, 1218826 + ... + 1218831.

It is an arithmetic number, because the mean of its divisors is an integer number (2437658).

Almost surely, 2^7312971 is an apocalyptic number.

7312971 is a deficient number, since it is larger than the sum of its proper divisors (2437661).

7312971 is a wasteful number, since it uses less digits than its factorization.

7312971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437660.

The product of its digits is 2646, while the sum is 30.

The square root of 7312971 is about 2704.2505431265. The cubic root of 7312971 is about 194.1025691362.

The spelling of 7312971 in words is "seven million, three hundred twelve thousand, nine hundred seventy-one".