901489 has 2 divisors, whose sum is σ = 901490. Its totient is φ = 901488.

The previous prime is 901471. The next prime is 901499. The reversal of 901489 is 984109.

901489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 893025 + 8464 = 945^2 + 92^2 .

It is a cyclic number.

It is not a de Polignac number, because 901489 - 2⁵ = 901457 is a prime.

It is a Chen prime.

901489 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 901489.

It is not a weakly prime, because it can be changed into another prime (901429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450744 + 450745.

It is an arithmetic number, because the mean of its divisors is an integer number (450745).

2⁹⁰¹⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

901489 is a deficient number, since it is larger than the sum of its proper divisors (1).

901489 is an equidigital number, since it uses as much as digits as its factorization.

901489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 901489 is about 949.4677456344. The cubic root of 901489 is about 96.6021540755.

The spelling of 901489 in words is "nine hundred one thousand, four hundred eighty-nine".