387193331 has 8 divisors (see below), whose sum is σ = 442700544. Its totient is φ = 331734600.

The previous prime is 387193327. The next prime is 387193349. The reversal of 387193331 is 133391783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 387193331 - 2² = 387193327 is a prime.

It is a super-2 number, since 2×387193331² = 299837351141751122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387193321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7016 + ... + 28698.

It is an arithmetic number, because the mean of its divisors is an integer number (55337568).

Almost surely, 2^387193331 is an apocalyptic number.

387193331 is a deficient number, since it is larger than the sum of its proper divisors (55507213).

387193331 is a wasteful number, since it uses less digits than its factorization.

387193331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24241.

The product of its digits is 40824, while the sum is 38.

The square root of 387193331 is about 19677.2287428896. The cubic root of 387193331 is about 728.8574928598.

The spelling of 387193331 in words is "three hundred eighty-seven million, one hundred ninety-three thousand, three hundred thirty-one".