387302873 has 2 divisors, whose sum is σ = 387302874. Its totient is φ = 387302872.

The previous prime is 387302779. The next prime is 387302879. The reversal of 387302873 is 378203783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 378224704 + 9078169 = 19448^2 + 3013^2 .

It is a cyclic number.

It is not a de Polignac number, because 387302873 - 2²² = 383108569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 387302873.

It is not a weakly prime, because it can be changed into another prime (387302879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193651436 + 193651437.

It is an arithmetic number, because the mean of its divisors is an integer number (193651437).

Almost surely, 2^387302873 is an apocalyptic number.

It is an amenable number.

387302873 is a deficient number, since it is larger than the sum of its proper divisors (1).

387302873 is an equidigital number, since it uses as much as digits as its factorization.

387302873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 387302873 is about 19680.0120172728. The cubic root of 387302873 is about 728.9262207820.

The spelling of 387302873 in words is "three hundred eighty-seven million, three hundred two thousand, eight hundred seventy-three".