13717970 has 16 divisors (see below), whose sum is σ = 28219968. Its totient is φ = 4703280.

The previous prime is 13717969. The next prime is 13717973. The reversal of 13717970 is 7971731.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 13717970.

It is not an unprimeable number, because it can be changed into a prime (13717973) 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, 97916 + ... + 98055.

It is an arithmetic number, because the mean of its divisors is an integer number (1763748).

Almost surely, 2^13717970 is an apocalyptic number.

13717970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13717970 is an abundant number, since it is smaller than the sum of its proper divisors (14501998).

13717970 is a wasteful number, since it uses less digits than its factorization.

13717970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195985.

The product of its (nonzero) digits is 9261, while the sum is 35.

The square root of 13717970 is about 3703.7778011106. Note that the first 3 decimals coincide. The cubic root of 13717970 is about 239.3848249756.

The spelling of 13717970 in words is "thirteen million, seven hundred seventeen thousand, nine hundred seventy".