7771896 has 64 divisors (see below), whose sum is σ = 23558400. Its totient is φ = 2354400.

The previous prime is 7771891. The next prime is 7771903. The reversal of 7771896 is 6981777.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7771891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741 + ... + 4011.

It is an arithmetic number, because the mean of its divisors is an integer number (368100).

Almost surely, 2^7771896 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 7771896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11779200).

7771896 is an abundant number, since it is smaller than the sum of its proper divisors (15786504).

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

7771896 is a wasteful number, since it uses less digits than its factorization.

7771896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297 (or 3287 counting only the distinct ones).

The product of its digits is 148176, while the sum is 45.

The square root of 7771896 is about 2787.8120453144. The cubic root of 7771896 is about 198.0807751237.

It can be divided in two parts, 7 and 771896, that added together give a triangular number (771903 = T₁₂₄₂).

The spelling of 7771896 in words is "seven million, seven hundred seventy-one thousand, eight hundred ninety-six".