13637674 has 4 divisors (see below), whose sum is σ = 20456514. Its totient is φ = 6818836.

The previous prime is 13637671. The next prime is 13637677. The reversal of 13637674 is 47673631.

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

It is an interprime number because it is at equal distance from previous prime (13637671) and next prime (13637677).

It can be written as a sum of positive squares in only one way, i.e., 13286025 + 351649 = 3645^2 + 593^2 .

It is not an unprimeable number, because it can be changed into a prime (13637671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3409417 + ... + 3409420.

Almost surely, 2^13637674 is an apocalyptic number.

13637674 is a deficient number, since it is larger than the sum of its proper divisors (6818840).

13637674 is an equidigital number, since it uses as much as digits as its factorization.

13637674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6818839.

The product of its digits is 63504, while the sum is 37.

The square root of 13637674 is about 3692.9221491930. The cubic root of 13637674 is about 238.9168434406.

The spelling of 13637674 in words is "thirteen million, six hundred thirty-seven thousand, six hundred seventy-four".