13577691 has 8 divisors (see below), whose sum is σ = 18125824. Its totient is φ = 9040680.

The previous prime is 13577677. The next prime is 13577693. The reversal of 13577691 is 19677531.

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

It is not a de Polignac number, because 13577691 - 2¹¹ = 13575643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13577693) 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, 690 + ... + 5256.

It is an arithmetic number, because the mean of its divisors is an integer number (2265728).

Almost surely, 2^13577691 is an apocalyptic number.

13577691 is a deficient number, since it is larger than the sum of its proper divisors (4548133).

13577691 is an equidigital number, since it uses as much as digits as its factorization.

13577691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5561.

The product of its digits is 39690, while the sum is 39.

The square root of 13577691 is about 3684.7918530088. The cubic root of 13577691 is about 238.5660502075.

The spelling of 13577691 in words is "thirteen million, five hundred seventy-seven thousand, six hundred ninety-one".