857152067 has 4 divisors (see below), whose sum is σ = 877085880. Its totient is φ = 837218256.

The previous prime is 857152007. The next prime is 857152081. The reversal of 857152067 is 760251758.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 857152067 - 2¹² = 857147971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (857152007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9966842 + ... + 9966927.

It is an arithmetic number, because the mean of its divisors is an integer number (219271470).

Almost surely, 2^857152067 is an apocalyptic number.

857152067 is a deficient number, since it is larger than the sum of its proper divisors (19933813).

857152067 is a wasteful number, since it uses less digits than its factorization.

857152067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19933812.

The product of its (nonzero) digits is 117600, while the sum is 41.

The square root of 857152067 is about 29277.1594762880. The cubic root of 857152067 is about 949.9176538042.

The spelling of 857152067 in words is "eight hundred fifty-seven million, one hundred fifty-two thousand, sixty-seven".