1027666443 has 8 divisors (see below), whose sum is σ = 1370454928. Its totient is φ = 684994464.

The previous prime is 1027666363. The next prime is 1027666463. The reversal of 1027666443 is 3446667201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1027666443 - 2²⁵ = 994112011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1027666463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5896 + ... + 45717.

It is an arithmetic number, because the mean of its divisors is an integer number (171306866).

Almost surely, 2^1027666443 is an apocalyptic number.

1027666443 is a deficient number, since it is larger than the sum of its proper divisors (342788485).

1027666443 is an equidigital number, since it uses as much as digits as its factorization.

1027666443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58253.

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 1027666443 is about 32057.2369832461. The cubic root of 1027666443 is about 1009.1383832362.

The spelling of 1027666443 in words is "one billion, twenty-seven million, six hundred sixty-six thousand, four hundred forty-three".