13977601 has 16 divisors (see below), whose sum is σ = 15945408. Its totient is φ = 12139200.

The previous prime is 13977599. The next prime is 13977611. The reversal of 13977601 is 10677931.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13977601 - 2¹ = 13977599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13977611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24546 + ... + 25108.

It is an arithmetic number, because the mean of its divisors is an integer number (996588).

Almost surely, 2^13977601 is an apocalyptic number.

13977601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13977601 is a deficient number, since it is larger than the sum of its proper divisors (1967807).

13977601 is a wasteful number, since it uses less digits than its factorization.

13977601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672.

The product of its (nonzero) digits is 7938, while the sum is 34.

The square root of 13977601 is about 3738.6629963130. The cubic root of 13977601 is about 240.8856226252.

It can be divided in two parts, 1397 and 7601, that added together give a palindrome (8998).

The spelling of 13977601 in words is "thirteen million, nine hundred seventy-seven thousand, six hundred one".