13987034 has 4 divisors (see below), whose sum is σ = 20980554. Its totient is φ = 6993516.

The previous prime is 13987007. The next prime is 13987049. The reversal of 13987034 is 43078931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13667809 + 319225 = 3697^2 + 565^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13986985 and 13987003.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3496757 + ... + 3496760.

Almost surely, 2^13987034 is an apocalyptic number.

13987034 is a deficient number, since it is larger than the sum of its proper divisors (6993520).

13987034 is an equidigital number, since it uses as much as digits as its factorization.

13987034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6993519.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 13987034 is about 3739.9243307853. The cubic root of 13987034 is about 240.9397989012.

The spelling of 13987034 in words is "thirteen million, nine hundred eighty-seven thousand, thirty-four".