380652091 has 2 divisors, whose sum is σ = 380652092. Its totient is φ = 380652090.

The previous prime is 380652079. The next prime is 380652109. The reversal of 380652091 is 190256083.

Together with next prime (380652109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 380652091 - 2⁷ = 380651963 is a prime.

It is equal to p_20358547 and since 380652091 and 20358547 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (380650091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190326045 + 190326046.

It is an arithmetic number, because the mean of its divisors is an integer number (190326046).

Almost surely, 2^380652091 is an apocalyptic number.

380652091 is a deficient number, since it is larger than the sum of its proper divisors (1).

380652091 is an equidigital number, since it uses as much as digits as its factorization.

380652091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 380652091 is about 19510.3073015265. The cubic root of 380652091 is about 724.7297231149.

The spelling of 380652091 in words is "three hundred eighty million, six hundred fifty-two thousand, ninety-one".