1428334877 has 8 divisors (see below), whose sum is σ = 1450461216. Its totient is φ = 1406232432.

The previous prime is 1428334867. The next prime is 1428334909. The reversal of 1428334877 is 7784338241.

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 1428334877 - 2⁶ = 1428334813 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 (1428334807) 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, 142763 + ... + 152439.

It is an arithmetic number, because the mean of its divisors is an integer number (181307652).

Almost surely, 2^1428334877 is an apocalyptic number.

It is an amenable number.

1428334877 is a deficient number, since it is larger than the sum of its proper divisors (22126339).

1428334877 is an equidigital number, since it uses as much as digits as its factorization.

1428334877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11947.

The product of its digits is 903168, while the sum is 47.

The square root of 1428334877 is about 37793.3178882193. The cubic root of 1428334877 is about 1126.1857133474.

The spelling of 1428334877 in words is "one billion, four hundred twenty-eight million, three hundred thirty-four thousand, eight hundred seventy-seven".