380651 has 2 divisors, whose sum is σ = 380652. Its totient is φ = 380650.

The previous prime is 380641. The next prime is 380657. The reversal of 380651 is 156083.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 380651 - 2¹⁴ = 364267 is a prime.

It is a plaindrome in base 15.

It is a zygodrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 380651.

It is not a weakly prime, because it can be changed into another prime (380657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190325 + 190326.

It is an arithmetic number, because the mean of its divisors is an integer number (190326).

2³⁸⁰⁶⁵¹ is an apocalyptic number.

380651 is a deficient number, since it is larger than the sum of its proper divisors (1).

380651 is an equidigital number, since it uses as much as digits as its factorization.

380651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 380651 is about 616.9692050662. The cubic root of 380651 is about 72.4729030723.

Subtracting from 380651 its sum of digits (23), we obtain a triangular number (380628 = T₈₇₂).

The spelling of 380651 in words is "three hundred eighty thousand, six hundred fifty-one".