7850864 has 40 divisors (see below), whose sum is σ = 17522688. Its totient is φ = 3337920.

The previous prime is 7850861. The next prime is 7850881. The reversal of 7850864 is 4680587.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7850861) 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, 21209 + ... + 21575.

Almost surely, 2^7850864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7850864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8761344).

7850864 is an abundant number, since it is smaller than the sum of its proper divisors (9671824).

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

7850864 is a wasteful number, since it uses less digits than its factorization.

7850864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 7850864 is about 2801.9393283938. The cubic root of 7850864 is about 198.7493962510.

The spelling of 7850864 in words is "seven million, eight hundred fifty thousand, eight hundred sixty-four".