13639002 has 16 divisors (see below), whose sum is σ = 29376480. Its totient is φ = 4196592.

The previous prime is 13638997. The next prime is 13639007. The reversal of 13639002 is 20093631.

It is an interprime number because it is at equal distance from previous prime (13638997) and next prime (13639007).

It is not an unprimeable number, because it can be changed into a prime (13639007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87352 + ... + 87507.

It is an arithmetic number, because the mean of its divisors is an integer number (1836030).

Almost surely, 2^13639002 is an apocalyptic number.

13639002 is an abundant number, since it is smaller than the sum of its proper divisors (15737478).

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

13639002 is a wasteful number, since it uses less digits than its factorization.

13639002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174877.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 13639002 is about 3693.1019482273. The cubic root of 13639002 is about 238.9245982153.

It can be divided in two parts, 13 and 639002, that added together give a triangular number (639015 = T₁₁₃₀).

The spelling of 13639002 in words is "thirteen million, six hundred thirty-nine thousand, two".