867134391 has 8 divisors (see below), whose sum is σ = 1156327920. Its totient is φ = 578015232.

The previous prime is 867134353. The next prime is 867134399. The reversal of 867134391 is 193431768.

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

It is not a de Polignac number, because 867134391 - 2¹⁸ = 866872247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867134399) 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, 20151 + ... + 46263.

It is an arithmetic number, because the mean of its divisors is an integer number (144540990).

Almost surely, 2^867134391 is an apocalyptic number.

867134391 is a deficient number, since it is larger than the sum of its proper divisors (289193529).

867134391 is a wasteful number, since it uses less digits than its factorization.

867134391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37185.

The product of its digits is 108864, while the sum is 42.

The square root of 867134391 is about 29447.1457190676. The cubic root of 867134391 is about 953.5909855727.

The spelling of 867134391 in words is "eight hundred sixty-seven million, one hundred thirty-four thousand, three hundred ninety-one".