387146479 has 2 divisors, whose sum is σ = 387146480. Its totient is φ = 387146478.

The previous prime is 387146471. The next prime is 387146483. The reversal of 387146479 is 974641783.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 387146479 - 2³ = 387146471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387146471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193573239 + 193573240.

It is an arithmetic number, because the mean of its divisors is an integer number (193573240).

Almost surely, 2^387146479 is an apocalyptic number.

387146479 is a deficient number, since it is larger than the sum of its proper divisors (1).

387146479 is an equidigital number, since it uses as much as digits as its factorization.

387146479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 49.

The square root of 387146479 is about 19676.0381937015. The cubic root of 387146479 is about 728.8280934134.

The spelling of 387146479 in words is "three hundred eighty-seven million, one hundred forty-six thousand, four hundred seventy-nine".