1428726877 has 8 divisors (see below), whose sum is σ = 1470030912. Its totient is φ = 1387730400.

The previous prime is 1428726863. The next prime is 1428726919. The reversal of 1428726877 is 7786278241.

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

It is a cyclic number.

It is not a de Polignac number, because 1428726877 - 2⁷ = 1428726749 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 (1428726077) 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, 67449 + ... + 86062.

It is an arithmetic number, because the mean of its divisors is an integer number (183753864).

Almost surely, 2^1428726877 is an apocalyptic number.

It is an amenable number.

1428726877 is a deficient number, since it is larger than the sum of its proper divisors (41304035).

1428726877 is a wasteful number, since it uses less digits than its factorization.

1428726877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153779.

The product of its digits is 2107392, while the sum is 52.

The square root of 1428726877 is about 37798.5036344033. The cubic root of 1428726877 is about 1126.2887294367.

The spelling of 1428726877 in words is "one billion, four hundred twenty-eight million, seven hundred twenty-six thousand, eight hundred seventy-seven".