387723141 has 12 divisors (see below), whose sum is σ = 603125068. Its totient is φ = 238598784.

The previous prime is 387723109. The next prime is 387723151. The reversal of 387723141 is 141327783.

387723141 is a `hidden beast` number, since 387 + 7 + 231 + 41 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 180794916 + 206928225 = 13446^2 + 14385^2 .

It is not a de Polignac number, because 387723141 - 2⁵ = 387723109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 387723096 and 387723105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387723151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1656820 + ... + 1657053.

Almost surely, 2^387723141 is an apocalyptic number.

It is an amenable number.

387723141 is a deficient number, since it is larger than the sum of its proper divisors (215401927).

387723141 is a wasteful number, since it uses less digits than its factorization.

387723141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313892 (or 3313889 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 387723141 is about 19690.6866563866. The cubic root of 387723141 is about 729.1897816339.

The spelling of 387723141 in words is "three hundred eighty-seven million, seven hundred twenty-three thousand, one hundred forty-one".