920431 has 8 divisors (see below), whose sum is σ = 1008720. Its totient is φ = 835968.

The previous prime is 920419. The next prime is 920441. The reversal of 920431 is 134029.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 920431 - 2⁵ = 920399 is a prime.

It is a super-2 number, since 2×920431² = 1694386451522, which contains 22 as substring.

It is a Duffinian number.

920431 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 920399 and 920408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441 + ... + 1426.

It is an arithmetic number, because the mean of its divisors is an integer number (126090).

2⁹²⁰⁴³¹ is an apocalyptic number.

920431 is a deficient number, since it is larger than the sum of its proper divisors (88289).

920431 is a wasteful number, since it uses less digits than its factorization.

920431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 920431 is about 959.3909526361. The cubic root of 920431 is about 97.2740681415.

The spelling of 920431 in words is "nine hundred twenty thousand, four hundred thirty-one".