1320005677 has 8 divisors (see below), whose sum is σ = 1389830400. Its totient is φ = 1250216064.

The previous prime is 1320005633. The next prime is 1320005683. The reversal of 1320005677 is 7765000231.

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 1320005677 - 2¹⁵ = 1319972909 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 (1320005177) 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, 109149 + ... + 120637.

It is an arithmetic number, because the mean of its divisors is an integer number (173728800).

Almost surely, 2^1320005677 is an apocalyptic number.

It is an amenable number.

1320005677 is a deficient number, since it is larger than the sum of its proper divisors (69824723).

1320005677 is a wasteful number, since it uses less digits than its factorization.

1320005677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17555.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 1320005677 is about 36331.8823762271. The cubic root of 1320005677 is about 1096.9628830725.

The spelling of 1320005677 in words is "one billion, three hundred twenty million, five thousand, six hundred seventy-seven".