387972746 has 32 divisors (see below), whose sum is σ = 690792960. Its totient is φ = 159966576.

The previous prime is 387972659. The next prime is 387972757. The reversal of 387972746 is 647279783.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35525 + ... + 45143.

It is an arithmetic number, because the mean of its divisors is an integer number (21587280).

Almost surely, 2^387972746 is an apocalyptic number.

387972746 is a deficient number, since it is larger than the sum of its proper divisors (302820214).

387972746 is a wasteful number, since it uses less digits than its factorization.

387972746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9738.

The product of its digits is 3556224, while the sum is 53.

The square root of 387972746 is about 19697.0237853337. The cubic root of 387972746 is about 729.3462251995.

The spelling of 387972746 in words is "three hundred eighty-seven million, nine hundred seventy-two thousand, seven hundred forty-six".