1725228387 has 12 divisors (see below), whose sum is σ = 2539016064. Its totient is φ = 1128450960.

The previous prime is 1725228383. The next prime is 1725228397. The reversal of 1725228387 is 7838225271.

1725228387 is a `hidden beast` number, since 17 + 252 + 2 + 8 + 387 = 666.

It is not a de Polignac number, because 1725228387 - 2² = 1725228383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1725228383) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1807939 + ... + 1808892.

It is an arithmetic number, because the mean of its divisors is an integer number (211584672).

Almost surely, 2^1725228387 is an apocalyptic number.

1725228387 is a deficient number, since it is larger than the sum of its proper divisors (813787677).

1725228387 is a wasteful number, since it uses less digits than its factorization.

1725228387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3616890 (or 3616887 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 1725228387 is about 41535.8686799735. The cubic root of 1725228387 is about 1199.3580795931.

The spelling of 1725228387 in words is "one billion, seven hundred twenty-five million, two hundred twenty-eight thousand, three hundred eighty-seven".