18977014 has 24 divisors (see below), whose sum is σ = 33927768. Its totient is φ = 7932960.

The previous prime is 18977011. The next prime is 18977017. The reversal of 18977014 is 41077981.

It is an interprime number because it is at equal distance from previous prime (18977011) and next prime (18977017).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18977011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1657 + ... + 6379.

It is an arithmetic number, because the mean of its divisors is an integer number (1413657).

Almost surely, 2^18977014 is an apocalyptic number.

18977014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18977014 is a deficient number, since it is larger than the sum of its proper divisors (14950754).

18977014 is a wasteful number, since it uses less digits than its factorization.

18977014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4780 (or 4773 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 18977014 is about 4356.2614705731. The cubic root of 18977014 is about 266.7325146416.

It can be divided in two parts, 1897 and 7014, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 18977014 in words is "eighteen million, nine hundred seventy-seven thousand, fourteen".