387167089 has 2 divisors, whose sum is σ = 387167090. Its totient is φ = 387167088.

The previous prime is 387167063. The next prime is 387167101. The reversal of 387167089 is 980761783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 360696064 + 26471025 = 18992^2 + 5145^2 .

It is an emirp because it is prime and its reverse (980761783) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 387167089 - 2⁵ = 387167057 is a prime.

It is not a weakly prime, because it can be changed into another prime (387162089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193583544 + 193583545.

It is an arithmetic number, because the mean of its divisors is an integer number (193583545).

Almost surely, 2^387167089 is an apocalyptic number.

It is an amenable number.

387167089 is a deficient number, since it is larger than the sum of its proper divisors (1).

387167089 is an equidigital number, since it uses as much as digits as its factorization.

387167089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 387167089 is about 19676.5619202136. The cubic root of 387167089 is about 728.8410263998.

The spelling of 387167089 in words is "three hundred eighty-seven million, one hundred sixty-seven thousand, eighty-nine".