7769916 has 72 divisors (see below), whose sum is σ = 24495744. Its totient is φ = 2017440.

The previous prime is 7769911. The next prime is 7769947. The reversal of 7769916 is 6199677.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7769911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1371 + ... + 4173.

Almost surely, 2^7769916 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 7769916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12247872).

7769916 is an abundant number, since it is smaller than the sum of its proper divisors (16725828).

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

7769916 is a wasteful number, since it uses less digits than its factorization.

7769916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2831 (or 2826 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 7769916 is about 2787.4569054965. The cubic root of 7769916 is about 198.0639524056.

The spelling of 7769916 in words is "seven million, seven hundred sixty-nine thousand, nine hundred sixteen".