167387389 has 8 divisors (see below), whose sum is σ = 190867320. Its totient is φ = 145422336.

The previous prime is 167387377. The next prime is 167387393. The reversal of 167387389 is 983783761.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 39312900 + 128074489 = 6270^2 + 11317^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 167387389 - 2¹³ = 167379197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167387309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378484 + ... + 378925.

It is an arithmetic number, because the mean of its divisors is an integer number (23858415).

Almost surely, 2^167387389 is an apocalyptic number.

It is an amenable number.

167387389 is a deficient number, since it is larger than the sum of its proper divisors (23479931).

167387389 is a wasteful number, since it uses less digits than its factorization.

167387389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757439.

The product of its digits is 1524096, while the sum is 52.

The square root of 167387389 is about 12937.8278315952. The cubic root of 167387389 is about 551.1133250218.

The spelling of 167387389 in words is "one hundred sixty-seven million, three hundred eighty-seven thousand, three hundred eighty-nine".