7864936 has 32 divisors (see below), whose sum is σ = 15804000. Its totient is φ = 3658176.

The previous prime is 7864903. The next prime is 7864939. The reversal of 7864936 is 6394687.

It is a happy number.

7864936 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 7864892 and 7864901.

It is not an unprimeable number, because it can be changed into a prime (7864939) 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, 8530 + ... + 9406.

It is an arithmetic number, because the mean of its divisors is an integer number (493875).

Almost surely, 2^7864936 is an apocalyptic number.

7864936 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

7864936 is an abundant number, since it is smaller than the sum of its proper divisors (7939064).

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

7864936 is a wasteful number, since it uses less digits than its factorization.

7864936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961 (or 957 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 7864936 is about 2804.4493220595. The cubic root of 7864936 is about 198.8680724526.

The spelling of 7864936 in words is "seven million, eight hundred sixty-four thousand, nine hundred thirty-six".