387373897 has 2 divisors, whose sum is σ = 387373898. Its totient is φ = 387373896.

The previous prime is 387373867. The next prime is 387373907. The reversal of 387373897 is 798373783.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 375235641 + 12138256 = 19371^2 + 3484^2 .

It is a cyclic number.

It is not a de Polignac number, because 387373897 - 2⁷ = 387373769 is a prime.

It is not a weakly prime, because it can be changed into another prime (387373807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193686948 + 193686949.

It is an arithmetic number, because the mean of its divisors is an integer number (193686949).

Almost surely, 2^387373897 is an apocalyptic number.

It is an amenable number.

387373897 is a deficient number, since it is larger than the sum of its proper divisors (1).

387373897 is an equidigital number, since it uses as much as digits as its factorization.

387373897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5334336, while the sum is 55.

The square root of 387373897 is about 19681.8164049968. The cubic root of 387373897 is about 728.9707751391.

The spelling of 387373897 in words is "three hundred eighty-seven million, three hundred seventy-three thousand, eight hundred ninety-seven".