13873878 has 12 divisors (see below), whose sum is σ = 30060108. Its totient is φ = 4624620.

The previous prime is 13873877. The next prime is 13873879. The reversal of 13873878 is 87837831.

It is an interprime number because it is at equal distance from previous prime (13873877) and next prime (13873879).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13873877) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 385368 + ... + 385403.

It is an arithmetic number, because the mean of its divisors is an integer number (2505009).

Almost surely, 2^13873878 is an apocalyptic number.

13873878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13873878 is an abundant number, since it is smaller than the sum of its proper divisors (16186230).

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

13873878 is a wasteful number, since it uses less digits than its factorization.

13873878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770779 (or 770776 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 13873878 is about 3724.7654959742. The cubic root of 13873878 is about 240.2882993758.

The spelling of 13873878 in words is "thirteen million, eight hundred seventy-three thousand, eight hundred seventy-eight".