387166258 has 4 divisors (see below), whose sum is σ = 580749390. Its totient is φ = 193583128.

The previous prime is 387166243. The next prime is 387166271. The reversal of 387166258 is 852661783.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 288422289 + 98743969 = 16983^2 + 9937^2 .

It is a super-2 number, since 2×387166258² = 299795422667445128, which contains 22 as substring.

It is an unprimeable number.

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, 96791563 + ... + 96791566.

Almost surely, 2^387166258 is an apocalyptic number.

387166258 is a deficient number, since it is larger than the sum of its proper divisors (193583132).

387166258 is a wasteful number, since it uses less digits than its factorization.

387166258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193583131.

The product of its digits is 483840, while the sum is 46.

The square root of 387166258 is about 19676.5408037084. The cubic root of 387166258 is about 728.8405049477.

The spelling of 387166258 in words is "three hundred eighty-seven million, one hundred sixty-six thousand, two hundred fifty-eight".