1051986893 has 2 divisors, whose sum is σ = 1051986894. Its totient is φ = 1051986892.

The previous prime is 1051986883. The next prime is 1051986937. The reversal of 1051986893 is 3986891501.

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., 866536969 + 185449924 = 29437^2 + 13618^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051986893 is a prime.

It is a super-2 number, since 2×1051986893² = 2213352846087586898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051986833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525993446 + 525993447.

It is an arithmetic number, because the mean of its divisors is an integer number (525993447).

Almost surely, 2^1051986893 is an apocalyptic number.

It is an amenable number.

1051986893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051986893 is an equidigital number, since it uses as much as digits as its factorization.

1051986893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 50.

The square root of 1051986893 is about 32434.3474267635. The cubic root of 1051986893 is about 1017.0370547016.

The spelling of 1051986893 in words is "one billion, fifty-one million, nine hundred eighty-six thousand, eight hundred ninety-three".