387463081 has 2 divisors, whose sum is σ = 387463082. Its totient is φ = 387463080.

The previous prime is 387463073. The next prime is 387463091. The reversal of 387463081 is 180364783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 357815056 + 29648025 = 18916^2 + 5445^2 .

It is a cyclic number.

It is not a de Polignac number, because 387463081 - 2³ = 387463073 is a prime.

It is a super-2 number, since 2×387463081² = 300255278276025122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (387463051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193731540 + 193731541.

It is an arithmetic number, because the mean of its divisors is an integer number (193731541).

Almost surely, 2^387463081 is an apocalyptic number.

It is an amenable number.

387463081 is a deficient number, since it is larger than the sum of its proper divisors (1).

387463081 is an equidigital number, since it uses as much as digits as its factorization.

387463081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 387463081 is about 19684.0819191549. The cubic root of 387463081 is about 729.0267138085.

The spelling of 387463081 in words is "three hundred eighty-seven million, four hundred sixty-three thousand, eighty-one".