747226 has 4 divisors (see below), whose sum is σ = 1120842. Its totient is φ = 373612.

The previous prime is 747223. The next prime is 747239. The reversal of 747226 is 622747.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 622747 = 37 ⋅16831.

It can be written as a sum of positive squares in only one way, i.e., 641601 + 105625 = 801^2 + 325^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 747194 and 747203.

It is not an unprimeable number, because it can be changed into a prime (747223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186805 + ... + 186808.

2⁷⁴⁷²²⁶ is an apocalyptic number.

747226 is a deficient number, since it is larger than the sum of its proper divisors (373616).

747226 is a wasteful number, since it uses less digits than its factorization.

747226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373615.

The product of its digits is 4704, while the sum is 28.

The square root of 747226 is about 864.4223504746. The cubic root of 747226 is about 90.7438758652.

The spelling of 747226 in words is "seven hundred forty-seven thousand, two hundred twenty-six".