1054989 has 24 divisors (see below), whose sum is σ = 1677312. Its totient is φ = 635040.

The previous prime is 1054957. The next prime is 1054993. The reversal of 1054989 is 9894501.

It is not a de Polignac number, because 1054989 - 2⁵ = 1054957 is a prime.

It is a super-2 number, since 2×1054989² = 2226003580242, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8244 + ... + 8370.

It is an arithmetic number, because the mean of its divisors is an integer number (69888).

2^1054989 is an apocalyptic number.

It is an amenable number.

1054989 is a deficient number, since it is larger than the sum of its proper divisors (622323).

1054989 is a wasteful number, since it uses less digits than its factorization.

1054989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1054989 is about 1027.1265744785. The cubic root of 1054989 is about 101.8003592171.

The spelling of 1054989 in words is "one million, fifty-four thousand, nine hundred eighty-nine".