857945088 has 704 divisors, whose sum is σ = 3521495040. Its totient is φ = 199065600.

The previous prime is 857945087. The next prime is 857945089. The reversal of 857945088 is 880549758.

It is an interprime number because it is at equal distance from previous prime (857945087) and next prime (857945089).

It is a tau number, because it is divible by the number of its divisors (704).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857945083) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27675633 + ... + 27675663.

Almost surely, 2^857945088 is an apocalyptic number.

857945088 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 857945088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1760747520).

857945088 is an abundant number, since it is smaller than the sum of its proper divisors (2663549952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

857945088 is a wasteful number, since it uses less digits than its factorization.

857945088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The square root of 857945088 is about 29290.6996843708. The cubic root of 857945088 is about 950.2105121669.

The spelling of 857945088 in words is "eight hundred fifty-seven million, nine hundred forty-five thousand, eighty-eight".