13779546 has 32 divisors (see below), whose sum is σ = 30371328. Its totient is φ = 4133040.

The previous prime is 13779539. The next prime is 13779587. The reversal of 13779546 is 64597731.

It is a super-2 number, since 2×13779546² = 379751775932232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13779498 and 13779507.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5785 + ... + 7811.

It is an arithmetic number, because the mean of its divisors is an integer number (949104).

Almost surely, 2^13779546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13779546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15185664).

13779546 is an abundant number, since it is smaller than the sum of its proper divisors (16591782).

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

13779546 is a wasteful number, since it uses less digits than its factorization.

13779546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146.

The product of its digits is 158760, while the sum is 42.

The square root of 13779546 is about 3712.0810874764. The cubic root of 13779546 is about 239.7424668071.

The spelling of 13779546 in words is "thirteen million, seven hundred seventy-nine thousand, five hundred forty-six".