1027716638 has 16 divisors (see below), whose sum is σ = 1660777440. Its totient is φ = 474153696.

The previous prime is 1027716629. The next prime is 1027716643. The reversal of 1027716638 is 8366177201.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1027716595 and 1027716604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85823 + ... + 97061.

It is an arithmetic number, because the mean of its divisors is an integer number (103798590).

Almost surely, 2^1027716638 is an apocalyptic number.

1027716638 is a deficient number, since it is larger than the sum of its proper divisors (633060802).

1027716638 is a wasteful number, since it uses less digits than its factorization.

1027716638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14771.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 1027716638 is about 32058.0198702290. The cubic root of 1027716638 is about 1009.1548129759.

The spelling of 1027716638 in words is "one billion, twenty-seven million, seven hundred sixteen thousand, six hundred thirty-eight".