387671772 has 24 divisors (see below), whose sum is σ = 919900800. Its totient is φ = 127033456.

The previous prime is 387671761. The next prime is 387671783. The reversal of 387671772 is 277176783.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (387671761) and next prime (387671783).

It is a congruent 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, 273072 + ... + 274487.

It is an arithmetic number, because the mean of its divisors is an integer number (38329200).

Almost surely, 2^387671772 is an apocalyptic number.

It is an amenable number.

387671772 is an abundant number, since it is smaller than the sum of its proper divisors (532229028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

387671772 is a wasteful number, since it uses less digits than its factorization.

387671772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547625 (or 547623 counting only the distinct ones).

The product of its digits is 691488, while the sum is 48.

The square root of 387671772 is about 19689.3822147877. The cubic root of 387671772 is about 729.1575770354.

The spelling of 387671772 in words is "three hundred eighty-seven million, six hundred seventy-one thousand, seven hundred seventy-two".