387222723 has 24 divisors (see below), whose sum is σ = 584204400. Its totient is φ = 246901824.

The previous prime is 387222709. The next prime is 387222743. The reversal of 387222723 is 327222783.

387222723 is a `hidden beast` number, since 387 + 2 + 2 + 272 + 3 = 666.

It is not a de Polignac number, because 387222723 - 2¹² = 387218627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (387222743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9793 + ... + 29501.

It is an arithmetic number, because the mean of its divisors is an integer number (24341850).

Almost surely, 2^387222723 is an apocalyptic number.

387222723 is a deficient number, since it is larger than the sum of its proper divisors (196981677).

387222723 is a wasteful number, since it uses less digits than its factorization.

387222723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19811 (or 19808 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 387222723 is about 19677.9755818529. The cubic root of 387222723 is about 728.8759350140.

The spelling of 387222723 in words is "three hundred eighty-seven million, two hundred twenty-two thousand, seven hundred twenty-three".