387146761 has 2 divisors, whose sum is σ = 387146762. Its totient is φ = 387146760.

The previous prime is 387146743. The next prime is 387146803. The reversal of 387146761 is 167641783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253605625 + 133541136 = 15925^2 + 11556^2 .

It is a cyclic number.

It is not a de Polignac number, because 387146761 - 2¹¹ = 387144713 is a prime.

It is a super-2 number, since 2×387146761² = 299765229105582242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (387146161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193573380 + 193573381.

It is an arithmetic number, because the mean of its divisors is an integer number (193573381).

Almost surely, 2^387146761 is an apocalyptic number.

It is an amenable number.

387146761 is a deficient number, since it is larger than the sum of its proper divisors (1).

387146761 is an equidigital number, since it uses as much as digits as its factorization.

387146761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 43.

The square root of 387146761 is about 19676.0453597769. The cubic root of 387146761 is about 728.8282703744.

The spelling of 387146761 in words is "three hundred eighty-seven million, one hundred forty-six thousand, seven hundred sixty-one".