13678011 has 8 divisors (see below), whose sum is σ = 20263760. Its totient is φ = 9118656.

The previous prime is 13678003. The next prime is 13678057. The reversal of 13678011 is 11087631.

It is not a de Polignac number, because 13678011 - 2³ = 13678003 is a prime.

It is a super-2 number, since 2×13678011² = 374175969832242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 506593 = 13678011 / (1 + 3 + 6 + 7 + 8 + 0 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13678001) 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, 253270 + ... + 253323.

It is an arithmetic number, because the mean of its divisors is an integer number (2532970).

Almost surely, 2^13678011 is an apocalyptic number.

13678011 is a deficient number, since it is larger than the sum of its proper divisors (6585749).

13678011 is an equidigital number, since it uses as much as digits as its factorization.

13678011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506602 (or 506596 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 13678011 is about 3698.3795100016. The cubic root of 13678011 is about 239.1521646738.

The spelling of 13678011 in words is "thirteen million, six hundred seventy-eight thousand, eleven".