920747 has 4 divisors (see below), whose sum is σ = 926016. Its totient is φ = 915480.

The previous prime is 920743. The next prime is 920753. The reversal of 920747 is 747029.

920747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 747029 = 163 ⋅4583.

It is a cyclic number.

It is not a de Polignac number, because 920747 - 2² = 920743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2363 + ... + 2724.

It is an arithmetic number, because the mean of its divisors is an integer number (231504).

2⁹²⁰⁷⁴⁷ is an apocalyptic number.

920747 is a deficient number, since it is larger than the sum of its proper divisors (5269).

920747 is a wasteful number, since it uses less digits than its factorization.

920747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5268.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 920747 is about 959.5556263188. Note that the first 3 decimals coincide. The cubic root of 920747 is about 97.2851988286.

The spelling of 920747 in words is "nine hundred twenty thousand, seven hundred forty-seven".