13761890 has 16 divisors (see below), whose sum is σ = 26075520. Its totient is φ = 5214960.

The previous prime is 13761883. The next prime is 13761893. The reversal of 13761890 is 9816731.

It is a self number, because there is not a number n which added to its sum of digits gives 13761890.

It is not an unprimeable number, because it can be changed into a prime (13761893) 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, 36026 + ... + 36405.

It is an arithmetic number, because the mean of its divisors is an integer number (1629720).

Almost surely, 2^13761890 is an apocalyptic number.

13761890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13761890 is a deficient number, since it is larger than the sum of its proper divisors (12313630).

13761890 is a wasteful number, since it uses less digits than its factorization.

13761890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72457.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 13761890 is about 3709.7021443776. The cubic root of 13761890 is about 239.6400274820.

The spelling of 13761890 in words is "thirteen million, seven hundred sixty-one thousand, eight hundred ninety".