387973750 has 20 divisors (see below), whose sum is σ = 727220340. Its totient is φ = 155189000.

The previous prime is 387973739. The next prime is 387973753. The reversal of 387973750 is 57379783.

It is a junction number, because it is equal to n+sod(n) for n = 387973694 and 387973703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387973753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 153940 + ... + 156439.

It is an arithmetic number, because the mean of its divisors is an integer number (36361017).

Almost surely, 2^387973750 is an apocalyptic number.

387973750 is a deficient number, since it is larger than the sum of its proper divisors (339246590).

387973750 is an equidigital number, since it uses as much as digits as its factorization.

387973750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310401 (or 310386 counting only the distinct ones).

The product of its (nonzero) digits is 1111320, while the sum is 49.

The square root of 387973750 is about 19697.0492714010. The cubic root of 387973750 is about 729.3468543356.

The spelling of 387973750 in words is "three hundred eighty-seven million, nine hundred seventy-three thousand, seven hundred fifty".