869387147 has 2 divisors, whose sum is σ = 869387148. Its totient is φ = 869387146.

The previous prime is 869387081. The next prime is 869387173. The reversal of 869387147 is 741783968.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 869387147 - 2¹⁸ = 869125003 is a prime.

It is a super-2 number, since 2×869387147² = 1511668022737599218, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (869387177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434693573 + 434693574.

It is an arithmetic number, because the mean of its divisors is an integer number (434693574).

Almost surely, 2^869387147 is an apocalyptic number.

869387147 is a deficient number, since it is larger than the sum of its proper divisors (1).

869387147 is an equidigital number, since it uses as much as digits as its factorization.

869387147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 53.

The square root of 869387147 is about 29485.3717460031. The cubic root of 869387147 is about 954.4160596011.

The spelling of 869387147 in words is "eight hundred sixty-nine million, three hundred eighty-seven thousand, one hundred forty-seven".