13977500 has 30 divisors (see below), whose sum is σ = 30571464. Its totient is φ = 5590000.

The previous prime is 13977487. The next prime is 13977503. The reversal of 13977500 is 577931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13977503) 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 9 ways as a sum of consecutive naturals, for example, 296 + ... + 5295.

Almost surely, 2^13977500 is an apocalyptic number.

13977500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13977500 is an abundant number, since it is smaller than the sum of its proper divisors (16593964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13977500 is an equidigital number, since it uses as much as digits as its factorization.

13977500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5615 (or 5598 counting only the distinct ones).

The product of its (nonzero) digits is 6615, while the sum is 32.

The square root of 13977500 is about 3738.6494887860. The cubic root of 13977500 is about 240.8850424229.

The spelling of 13977500 in words is "thirteen million, nine hundred seventy-seven thousand, five hundred".