7890912 has 48 divisors (see below), whose sum is σ = 23017680. Its totient is φ = 2630016.

The previous prime is 7890881. The next prime is 7890913. The reversal of 7890912 is 2190987.

It is a happy number.

7890912 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2 and base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7890913) 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, 3703 + ... + 5430.

It is an arithmetic number, because the mean of its divisors is an integer number (479535).

Almost surely, 2^7890912 is an apocalyptic number.

7890912 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7890912 is an abundant number, since it is smaller than the sum of its proper divisors (15126768).

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

7890912 is a wasteful number, since it uses less digits than its factorization.

7890912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9152 (or 9138 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 7890912 is about 2809.0767166455. The cubic root of 7890912 is about 199.0867697326.

The spelling of 7890912 in words is "seven million, eight hundred ninety thousand, nine hundred twelve".