920427 has 4 divisors (see below), whose sum is σ = 1227240. Its totient is φ = 613616.

The previous prime is 920419. The next prime is 920441. The reversal of 920427 is 724029.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724029 = 3 ⋅241343.

It is a cyclic number.

It is not a de Polignac number, because 920427 - 2³ = 920419 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 920397 and 920406.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 920427.

It is not an unprimeable number, because it can be changed into a prime (920407) by changing a digit.

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, 153402 + ... + 153407.

It is an arithmetic number, because the mean of its divisors is an integer number (306810).

2⁹²⁰⁴²⁷ is an apocalyptic number.

920427 is a deficient number, since it is larger than the sum of its proper divisors (306813).

920427 is a wasteful number, since it uses less digits than its factorization.

920427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306812.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 920427 is about 959.3888679779. The cubic root of 920427 is about 97.2739272304.

The spelling of 920427 in words is "nine hundred twenty thousand, four hundred twenty-seven".