387441253 has 2 divisors, whose sum is σ = 387441254. Its totient is φ = 387441252.

The previous prime is 387441251. The next prime is 387441281. The reversal of 387441253 is 352144783.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313360804 + 74080449 = 17702^2 + 8607^2 .

It is a cyclic number.

It is not a de Polignac number, because 387441253 - 2¹ = 387441251 is a prime.

It is a super-2 number, since 2×387441253² = 300221449052420018, which contains 22 as substring.

Together with 387441251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387441251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193720626 + 193720627.

It is an arithmetic number, because the mean of its divisors is an integer number (193720627).

Almost surely, 2^387441253 is an apocalyptic number.

It is an amenable number.

387441253 is a deficient number, since it is larger than the sum of its proper divisors (1).

387441253 is an equidigital number, since it uses as much as digits as its factorization.

387441253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 37.

The square root of 387441253 is about 19683.5274531777. The cubic root of 387441253 is about 729.0130234771.

The spelling of 387441253 in words is "three hundred eighty-seven million, four hundred forty-one thousand, two hundred fifty-three".