920775 has 12 divisors (see below), whose sum is σ = 1522472. Its totient is φ = 491040.

The previous prime is 920761. The next prime is 920783. The reversal of 920775 is 577029.

It is a happy number.

920775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 920775 - 2⁵ = 920743 is a prime.

It is a Duffinian number.

920775 is a lucky number.

It is a zygodrome in base 2.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 920775.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6064 + ... + 6213.

2⁹²⁰⁷⁷⁵ is an apocalyptic number.

920775 is a deficient number, since it is larger than the sum of its proper divisors (601697).

920775 is a wasteful number, since it uses less digits than its factorization.

920775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12290 (or 12285 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 920775 is about 959.5702162948. The cubic root of 920775 is about 97.2861849692.

The spelling of 920775 in words is "nine hundred twenty thousand, seven hundred seventy-five".