382301921 has 2 divisors, whose sum is σ = 382301922. Its totient is φ = 382301920.

The previous prime is 382301897. The next prime is 382301923. The reversal of 382301921 is 129103283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 363283600 + 19018321 = 19060^2 + 4361^2 .

It is a cyclic number.

It is not a de Polignac number, because 382301921 - 2¹⁴ = 382285537 is a prime.

It is a Sophie Germain prime.

Together with 382301923, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (382301923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191150960 + 191150961.

It is an arithmetic number, because the mean of its divisors is an integer number (191150961).

Almost surely, 2^382301921 is an apocalyptic number.

It is an amenable number.

382301921 is a deficient number, since it is larger than the sum of its proper divisors (1).

382301921 is an equidigital number, since it uses as much as digits as its factorization.

382301921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 382301921 is about 19552.5425712361. The cubic root of 382301921 is about 725.7752601174.

The spelling of 382301921 in words is "three hundred eighty-two million, three hundred one thousand, nine hundred twenty-one".