1309977 has 12 divisors (see below), whose sum is σ = 1925040. Its totient is φ = 858168.

The previous prime is 1309963. The next prime is 1309999. The reversal of 1309977 is 7799031.

It is not a de Polignac number, because 1309977 - 2⁴ = 1309961 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1309907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 703 + ... + 1764.

It is an arithmetic number, because the mean of its divisors is an integer number (160420).

2^1309977 is an apocalyptic number.

It is an amenable number.

1309977 is a deficient number, since it is larger than the sum of its proper divisors (615063).

1309977 is a wasteful number, since it uses less digits than its factorization.

1309977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2532 (or 2529 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 36.

The square root of 1309977 is about 1144.5422665852. The cubic root of 1309977 is about 109.4177777704.

The spelling of 1309977 in words is "one million, three hundred nine thousand, nine hundred seventy-seven".