3818430997 has 8 divisors (see below), whose sum is σ = 4021690176. Its totient is φ = 3618275232.

The previous prime is 3818430989. The next prime is 3818431009. The reversal of 3818430997 is 7990348183.

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

It is a cyclic number.

It is not a de Polignac number, because 3818430997 - 2³ = 3818430989 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 (3818430937) 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, 773328 + ... + 778249.

It is an arithmetic number, because the mean of its divisors is an integer number (502711272).

Almost surely, 2^3818430997 is an apocalyptic number.

It is an amenable number.

3818430997 is a deficient number, since it is larger than the sum of its proper divisors (203259179).

3818430997 is a wasteful number, since it uses less digits than its factorization.

3818430997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551707.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 3818430997 is about 61793.4543216351. The cubic root of 3818430997 is about 1563.0096125612.

The spelling of 3818430997 in words is "three billion, eight hundred eighteen million, four hundred thirty thousand, nine hundred ninety-seven".