382401997 has 4 divisors (see below), whose sum is σ = 382467580. Its totient is φ = 382336416.

The previous prime is 382401991. The next prime is 382402001. The reversal of 382401997 is 799104283.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 222278281 + 160123716 = 14909^2 + 12654^2 .

It is a cyclic number.

It is not a de Polignac number, because 382401997 - 2³ = 382401989 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 (382401991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23088 + ... + 36025.

It is an arithmetic number, because the mean of its divisors is an integer number (95616895).

Almost surely, 2^382401997 is an apocalyptic number.

It is an amenable number.

382401997 is a deficient number, since it is larger than the sum of its proper divisors (65583).

382401997 is an equidigital number, since it uses as much as digits as its factorization.

382401997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65582.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 382401997 is about 19555.1015594397. The cubic root of 382401997 is about 725.8385838450.

The spelling of 382401997 in words is "three hundred eighty-two million, four hundred one thousand, nine hundred ninety-seven".