7230731 has 2 divisors, whose sum is σ = 7230732. Its totient is φ = 7230730.

The previous prime is 7230709. The next prime is 7230749. The reversal of 7230731 is 1370327.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7230731 - 2¹⁰ = 7229707 is a prime.

It is a super-2 number, since 2×7230731² = 104566941588722, which contains 22 as substring.

It is a Chen prime.

It is a d-powerful number, because it can be written as 7⁷ + 2¹⁹ + 3¹⁰ + 0 + 7⁸ + 3¹⁰ + 1 .

It is a junction number, because it is equal to n+sod(n) for n = 7230697 and 7230706.

It is not a weakly prime, because it can be changed into another prime (7230701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3615365 + 3615366.

It is an arithmetic number, because the mean of its divisors is an integer number (3615366).

Almost surely, 2^7230731 is an apocalyptic number.

7230731 is a deficient number, since it is larger than the sum of its proper divisors (1).

7230731 is an equidigital number, since it uses as much as digits as its factorization.

7230731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 7230731 is about 2689.0018594267. The cubic root of 7230731 is about 193.3722134119.

It can be divided in two parts, 72 and 30731, that added together give a palindrome (30803).

The spelling of 7230731 in words is "seven million, two hundred thirty thousand, seven hundred thirty-one".