1977859103 has 6 divisors (see below), whose sum is σ = 2174010552. Its totient is φ = 1798053620.

The previous prime is 1977859097. The next prime is 1977859111. The reversal of 1977859103 is 3019587791.

It is not a de Polignac number, because 1977859103 - 2²⁴ = 1961081887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1977859133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8172851 + ... + 8173092.

It is an arithmetic number, because the mean of its divisors is an integer number (362335092).

Almost surely, 2^1977859103 is an apocalyptic number.

1977859103 is a deficient number, since it is larger than the sum of its proper divisors (196151449).

1977859103 is a wasteful number, since it uses less digits than its factorization.

1977859103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16345965 (or 16345954 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 50.

The square root of 1977859103 is about 44473.1278751563. The cubic root of 1977859103 is about 1255.2544899589.

The spelling of 1977859103 in words is "one billion, nine hundred seventy-seven million, eight hundred fifty-nine thousand, one hundred three".