857376899 has 8 divisors (see below), whose sum is σ = 875868048. Its totient is φ = 839028960.

The previous prime is 857376869. The next prime is 857376931. The reversal of 857376899 is 998673758.

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 857376899 - 2¹⁶ = 857311363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (857376869) 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, 23657 + ... + 47690.

It is an arithmetic number, because the mean of its divisors is an integer number (109483506).

Almost surely, 2^857376899 is an apocalyptic number.

857376899 is a deficient number, since it is larger than the sum of its proper divisors (18491149).

857376899 is a wasteful number, since it uses less digits than its factorization.

857376899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71605.

The product of its digits is 22861440, while the sum is 62.

The square root of 857376899 is about 29280.9989412930. The cubic root of 857376899 is about 950.0007013845. Note that the first 3 decimals are identical.

Adding to 857376899 its sum of digits (62), we get a square (857376961 = 29281²).

The spelling of 857376899 in words is "eight hundred fifty-seven million, three hundred seventy-six thousand, eight hundred ninety-nine".