920792489 has 2 divisors, whose sum is σ = 920792490. Its totient is φ = 920792488.

The previous prime is 920792461. The next prime is 920792491. The reversal of 920792489 is 984297029.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 862009600 + 58782889 = 29360^2 + 7667^2 .

It is a cyclic number.

It is not a de Polignac number, because 920792489 - 2²⁸ = 652357033 is a prime.

Together with 920792491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (920792449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460396244 + 460396245.

It is an arithmetic number, because the mean of its divisors is an integer number (460396245).

Almost surely, 2^920792489 is an apocalyptic number.

It is an amenable number.

920792489 is a deficient number, since it is larger than the sum of its proper divisors (1).

920792489 is an equidigital number, since it uses as much as digits as its factorization.

920792489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 920792489 is about 30344.5627584251. The cubic root of 920792489 is about 972.8680090954.

The spelling of 920792489 in words is "nine hundred twenty million, seven hundred ninety-two thousand, four hundred eighty-nine".