747481 has 4 divisors (see below), whose sum is σ = 854272. Its totient is φ = 640692.

The previous prime is 747463. The next prime is 747493. The reversal of 747481 is 184747.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 184747 = 239 ⋅773.

It is a cyclic number.

It is not a de Polignac number, because 747481 - 2⁵ = 747449 is a prime.

It is a super-2 number, since 2×747481² = 1117455690722, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (747401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53385 + ... + 53398.

It is an arithmetic number, because the mean of its divisors is an integer number (213568).

2⁷⁴⁷⁴⁸¹ is an apocalyptic number.

It is an amenable number.

747481 is a deficient number, since it is larger than the sum of its proper divisors (106791).

747481 is a wasteful number, since it uses less digits than its factorization.

747481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106790.

The product of its digits is 6272, while the sum is 31.

The square root of 747481 is about 864.5698352360. The cubic root of 747481 is about 90.7541971765.

The spelling of 747481 in words is "seven hundred forty-seven thousand, four hundred eighty-one".