1320004877 has 4 divisors (see below), whose sum is σ = 1320494496. Its totient is φ = 1319515260.

The previous prime is 1320004849. The next prime is 1320004951. The reversal of 1320004877 is 7784000231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7784000231 = 7 ⋅1112000033.

It is a cyclic number.

It is not a de Polignac number, because 1320004877 - 2⁶ = 1320004813 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 (1320004277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240743 + ... + 246164.

It is an arithmetic number, because the mean of its divisors is an integer number (330123624).

Almost surely, 2^1320004877 is an apocalyptic number.

It is an amenable number.

1320004877 is a deficient number, since it is larger than the sum of its proper divisors (489619).

1320004877 is an equidigital number, since it uses as much as digits as its factorization.

1320004877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489618.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 1320004877 is about 36331.8713666114. The cubic root of 1320004877 is about 1096.9626614647.

The spelling of 1320004877 in words is "one billion, three hundred twenty million, four thousand, eight hundred seventy-seven".