363847989 has 16 divisors (see below), whose sum is σ = 493341632. Its totient is φ = 238474368.

The previous prime is 363847943. The next prime is 363847993. The reversal of 363847989 is 989748363.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-363847989 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 (363847999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121737 + ... + 124689.

It is an arithmetic number, because the mean of its divisors is an integer number (30833852).

Almost surely, 2^363847989 is an apocalyptic number.

It is an amenable number.

363847989 is a deficient number, since it is larger than the sum of its proper divisors (129493643).

363847989 is a wasteful number, since it uses less digits than its factorization.

363847989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3636.

The product of its digits is 7838208, while the sum is 57.

The square root of 363847989 is about 19074.7998416759. The cubic root of 363847989 is about 713.9042920306.

The spelling of 363847989 in words is "three hundred sixty-three million, eight hundred forty-seven thousand, nine hundred eighty-nine".