387197425 has 6 divisors (see below), whose sum is σ = 480124838. Its totient is φ = 309757920.

The previous prime is 387197401. The next prime is 387197429. The reversal of 387197425 is 524791783.

It can be written as a sum of positive squares in 3 ways, for example, as 44836416 + 342361009 = 6696^2 + 18503^2 .

It is not a de Polignac number, because 387197425 - 2¹¹ = 387195377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387197429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7743924 + ... + 7743973.

Almost surely, 2^387197425 is an apocalyptic number.

It is an amenable number.

387197425 is a deficient number, since it is larger than the sum of its proper divisors (92927413).

387197425 is a wasteful number, since it uses less digits than its factorization.

387197425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15487907 (or 15487902 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 387197425 is about 19677.3327714912. The cubic root of 387197425 is about 728.8600617161.

The spelling of 387197425 in words is "three hundred eighty-seven million, one hundred ninety-seven thousand, four hundred twenty-five".