387672890 has 16 divisors (see below), whose sum is σ = 761248800. Its totient is φ = 140971920.

The previous prime is 387672853. The next prime is 387672973. The reversal of 387672890 is 98276783.

It is a happy number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1762040 + ... + 1762259.

It is an arithmetic number, because the mean of its divisors is an integer number (47578050).

Almost surely, 2^387672890 is an apocalyptic number.

387672890 is a deficient number, since it is larger than the sum of its proper divisors (373575910).

387672890 is a wasteful number, since it uses less digits than its factorization.

387672890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3524317.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The square root of 387672890 is about 19689.4106057038. The cubic root of 387672890 is about 729.1582779697.

The spelling of 387672890 in words is "three hundred eighty-seven million, six hundred seventy-two thousand, eight hundred ninety".