904890053 has 2 divisors, whose sum is σ = 904890054. Its totient is φ = 904890052.

The previous prime is 904890037. The next prime is 904890073. The reversal of 904890053 is 350098409.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 902822209 + 2067844 = 30047^2 + 1438^2 .

It is a cyclic number.

It is not a de Polignac number, because 904890053 - 2⁴ = 904890037 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 904889989 and 904890016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (904890023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452445026 + 452445027.

It is an arithmetic number, because the mean of its divisors is an integer number (452445027).

Almost surely, 2^904890053 is an apocalyptic number.

It is an amenable number.

904890053 is a deficient number, since it is larger than the sum of its proper divisors (1).

904890053 is an equidigital number, since it uses as much as digits as its factorization.

904890053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 904890053 is about 30081.3904765056. The cubic root of 904890053 is about 967.2348546422.

The spelling of 904890053 in words is "nine hundred four million, eight hundred ninety thousand, fifty-three".