3623855997 has 8 divisors (see below), whose sum is σ = 5086113760. Its totient is φ = 2288751120.

The previous prime is 3623855981. The next prime is 3623856007. The reversal of 3623855997 is 7995583263.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3623855997 - 2⁴ = 3623855981 is a prime.

It is a super-3 number, since 3×3623855997³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 63576421 = 3623855997 / (3 + 6 + 2 + 3 + 8 + 5 + 5 + 9 + 9 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3623855947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31788154 + ... + 31788267.

It is an arithmetic number, because the mean of its divisors is an integer number (635764220).

Almost surely, 2^3623855997 is an apocalyptic number.

It is an amenable number.

3623855997 is a deficient number, since it is larger than the sum of its proper divisors (1462257763).

3623855997 is a wasteful number, since it uses less digits than its factorization.

3623855997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63576443.

The product of its digits is 12247200, while the sum is 57.

The square root of 3623855997 is about 60198.4717164813. The cubic root of 3623855997 is about 1535.9967986146.

It can be divided in two parts, 36238 and 55997, that added together give a triangular number (92235 = T₄₂₉).

The spelling of 3623855997 in words is "three billion, six hundred twenty-three million, eight hundred fifty-five thousand, nine hundred ninety-seven".