747231 has 8 divisors (see below), whose sum is σ = 1001520. Its totient is φ = 495552.

The previous prime is 747223. The next prime is 747239. The reversal of 747231 is 132747.

It is an interprime number because it is at equal distance from previous prime (747223) and next prime (747239).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 747231 - 2³ = 747223 is a prime.

It is a super-2 number, since 2×747231² = 1116708334722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165 + ... + 1233.

It is an arithmetic number, because the mean of its divisors is an integer number (125190).

2⁷⁴⁷²³¹ is an apocalyptic number.

747231 is a deficient number, since it is larger than the sum of its proper divisors (254289).

747231 is a wasteful number, since it uses less digits than its factorization.

747231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305.

The product of its digits is 1176, while the sum is 24.

The square root of 747231 is about 864.4252425745. The cubic root of 747231 is about 90.7440782664.

Adding to 747231 its reverse (132747), we get a palindrome (879978).

It can be divided in two parts, 7472 and 31, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 747231 in words is "seven hundred forty-seven thousand, two hundred thirty-one".