1055891673 has 16 divisors (see below), whose sum is σ = 1579776000. Its totient is φ = 696956400.

The previous prime is 1055891647. The next prime is 1055891687. The reversal of 1055891673 is 3761985501.

It is a happy number.

1055891673 is a `hidden beast` number, since 1 + 0 + 5 + 589 + 1 + 67 + 3 = 666.

It is not a de Polignac number, because 1055891673 - 2¹² = 1055887577 is a prime.

It is a super-2 number, since 2×1055891673² = 2229814450221477858, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055891633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190873 + ... + 196326.

It is an arithmetic number, because the mean of its divisors is an integer number (98736000).

Almost surely, 2^1055891673 is an apocalyptic number.

It is an amenable number.

1055891673 is a deficient number, since it is larger than the sum of its proper divisors (523884327).

1055891673 is a wasteful number, since it uses less digits than its factorization.

1055891673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387309 (or 387303 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 1055891673 is about 32494.4868093035. The cubic root of 1055891673 is about 1018.2938518793.

The spelling of 1055891673 in words is "one billion, fifty-five million, eight hundred ninety-one thousand, six hundred seventy-three".