387983623 has 2 divisors, whose sum is σ = 387983624. Its totient is φ = 387983622.

The previous prime is 387983597. The next prime is 387983627. The reversal of 387983623 is 326389783.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 387983623 - 2¹⁷ = 387852551 is a prime.

It is a super-2 number, since 2×387983623² = 301062583432412258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387983627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193991811 + 193991812.

It is an arithmetic number, because the mean of its divisors is an integer number (193991812).

Almost surely, 2^387983623 is an apocalyptic number.

387983623 is a deficient number, since it is larger than the sum of its proper divisors (1).

387983623 is an equidigital number, since it uses as much as digits as its factorization.

387983623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 49.

The square root of 387983623 is about 19697.2998911018. The cubic root of 387983623 is about 729.3530409916.

The spelling of 387983623 in words is "three hundred eighty-seven million, nine hundred eighty-three thousand, six hundred twenty-three".