920090893 has 2 divisors, whose sum is σ = 920090894. Its totient is φ = 920090892.

The previous prime is 920090887. The next prime is 920090929. The reversal of 920090893 is 398090029.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 920090889 + 4 = 30333^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 920090893 - 2²⁹ = 383219981 is a prime.

It is a super-4 number, since 4×920090893⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (920093893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460045446 + 460045447.

It is an arithmetic number, because the mean of its divisors is an integer number (460045447).

Almost surely, 2^920090893 is an apocalyptic number.

It is an amenable number.

920090893 is a deficient number, since it is larger than the sum of its proper divisors (1).

920090893 is an equidigital number, since it uses as much as digits as its factorization.

920090893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 920090893 is about 30333.0000659348. Note that the first 4 decimals coincide. The cubic root of 920090893 is about 972.6208546990.

The spelling of 920090893 in words is "nine hundred twenty million, ninety thousand, eight hundred ninety-three".