13779090 has 48 divisors (see below), whose sum is σ = 38584728. Its totient is φ = 3391488.

The previous prime is 13779071. The next prime is 13779091. The reversal of 13779090 is 9097731.

It can be written as a sum of positive squares in 4 ways, for example, as 9941409 + 3837681 = 3153^2 + 1959^2 .

It is not an unprimeable number, because it can be changed into a prime (13779091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4719 + ... + 7058.

Almost surely, 2^13779090 is an apocalyptic number.

13779090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13779090 is an abundant number, since it is smaller than the sum of its proper divisors (24805638).

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

13779090 is a wasteful number, since it uses less digits than its factorization.

13779090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11803 (or 11800 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 36.

The square root of 13779090 is about 3712.0196658962. The cubic root of 13779090 is about 239.7398222166.

The spelling of 13779090 in words is "thirteen million, seven hundred seventy-nine thousand, ninety".