858897012 has 24 divisors (see below), whose sum is σ = 2041907616. Its totient is φ = 280896928.

The previous prime is 858896993. The next prime is 858897047. The reversal of 858897012 is 210798858.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 674598 + ... + 675869.

It is an arithmetic number, because the mean of its divisors is an integer number (85079484).

Almost surely, 2^858897012 is an apocalyptic number.

It is an amenable number.

858897012 is an abundant number, since it is smaller than the sum of its proper divisors (1183010604).

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

858897012 is a wasteful number, since it uses less digits than its factorization.

858897012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350527 (or 1350525 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 48.

The square root of 858897012 is about 29306.9447742340. The cubic root of 858897012 is about 950.5618143165.

The spelling of 858897012 in words is "eight hundred fifty-eight million, eight hundred ninety-seven thousand, twelve".