363969013 has 4 divisors (see below), whose sum is σ = 372846348. Its totient is φ = 355091680.

The previous prime is 363969007. The next prime is 363969019. The reversal of 363969013 is 310969363.

It is a happy number.

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 (363969007) and next prime (363969019).

It can be written as a sum of positive squares in 2 ways, for example, as 102758769 + 261210244 = 10137^2 + 16162^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-363969013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (363969019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4438606 + ... + 4438687.

It is an arithmetic number, because the mean of its divisors is an integer number (93211587).

Almost surely, 2^363969013 is an apocalyptic number.

It is an amenable number.

363969013 is a deficient number, since it is larger than the sum of its proper divisors (8877335).

363969013 is an equidigital number, since it uses as much as digits as its factorization.

363969013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8877334.

The product of its (nonzero) digits is 78732, while the sum is 40.

The square root of 363969013 is about 19077.9719309994. The cubic root of 363969013 is about 713.9834367815.

The spelling of 363969013 in words is "three hundred sixty-three million, nine hundred sixty-nine thousand, thirteen".