13308977 has 8 divisors (see below), whose sum is σ = 15373152. Its totient is φ = 11387200.

The previous prime is 13308961. The next prime is 13308979. The reversal of 13308977 is 77980331.

It is a happy number.

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

It is not a de Polignac number, because 13308977 - 2⁴ = 13308961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13308977.

It is not an unprimeable number, because it can be changed into a prime (13308979) 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, 35399 + ... + 35772.

It is an arithmetic number, because the mean of its divisors is an integer number (1921644).

Almost surely, 2^13308977 is an apocalyptic number.

13308977 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13308977 is a deficient number, since it is larger than the sum of its proper divisors (2064175).

13308977 is a wasteful number, since it uses less digits than its factorization.

13308977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71199.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 13308977 is about 3648.1470639216. The cubic root of 13308977 is about 236.9817441593.

The spelling of 13308977 in words is "thirteen million, three hundred eight thousand, nine hundred seventy-seven".