363639397 has 4 divisors (see below), whose sum is σ = 396697536. Its totient is φ = 330581260.

The previous prime is 363639389. The next prime is 363639403. The reversal of 363639397 is 793936363.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 363639397 - 2³ = 363639389 is a prime.

It is a super-2 number, since 2×363639397² = 264467222101047218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 363639397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (363639377) 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, 16529053 + ... + 16529074.

It is an arithmetic number, because the mean of its divisors is an integer number (99174384).

Almost surely, 2^363639397 is an apocalyptic number.

It is an amenable number.

363639397 is a deficient number, since it is larger than the sum of its proper divisors (33058139).

363639397 is a wasteful number, since it uses less digits than its factorization.

363639397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33058138.

The product of its digits is 1653372, while the sum is 49.

The square root of 363639397 is about 19069.3313202115. The cubic root of 363639397 is about 713.7678401835.

The spelling of 363639397 in words is "three hundred sixty-three million, six hundred thirty-nine thousand, three hundred ninety-seven".