7768481 has 4 divisors (see below), whose sum is σ = 8878272. Its totient is φ = 6658692.

The previous prime is 7768459. The next prime is 7768487. The reversal of 7768481 is 1848677.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7768481 - 2¹⁰ = 7767457 is a prime.

It is a super-2 number, since 2×7768481² = 120698594094722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7768487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554885 + ... + 554898.

It is an arithmetic number, because the mean of its divisors is an integer number (2219568).

Almost surely, 2^7768481 is an apocalyptic number.

It is an amenable number.

7768481 is a deficient number, since it is larger than the sum of its proper divisors (1109791).

7768481 is a wasteful number, since it uses less digits than its factorization.

7768481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109790.

The product of its digits is 75264, while the sum is 41.

The square root of 7768481 is about 2787.1994905281. The cubic root of 7768481 is about 198.0517583969.

The spelling of 7768481 in words is "seven million, seven hundred sixty-eight thousand, four hundred eighty-one".