747085 has 4 divisors (see below), whose sum is σ = 896508. Its totient is φ = 597664.

The previous prime is 747073. The next prime is 747107. The reversal of 747085 is 580747.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 465124 + 281961 = 682^2 + 531^2 .

It is a cyclic number.

It is not a de Polignac number, because 747085 - 2⁵ = 747053 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

747085 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74704 + ... + 74713.

It is an arithmetic number, because the mean of its divisors is an integer number (224127).

2⁷⁴⁷⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

747085 is a deficient number, since it is larger than the sum of its proper divisors (149423).

747085 is a wasteful number, since it uses less digits than its factorization.

747085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149422.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 747085 is about 864.3407892724. The cubic root of 747085 is about 90.7381677789.

The spelling of 747085 in words is "seven hundred forty-seven thousand, eighty-five".