7764081 has 16 divisors (see below), whose sum is σ = 11210304. Its totient is φ = 4751424.

The previous prime is 7764079. The next prime is 7764101. The reversal of 7764081 is 1804677.

It is not a de Polignac number, because 7764081 - 2¹ = 7764079 is a prime.

It is a super-2 number, since 2×7764081² = 120561907549122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7764011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8415 + ... + 9291.

It is an arithmetic number, because the mean of its divisors is an integer number (700644).

Almost surely, 2^7764081 is an apocalyptic number.

It is an amenable number.

7764081 is a deficient number, since it is larger than the sum of its proper divisors (3446223).

7764081 is a wasteful number, since it uses less digits than its factorization.

7764081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 7764081 is about 2786.4100559681. The cubic root of 7764081 is about 198.0143597381.

The spelling of 7764081 in words is "seven million, seven hundred sixty-four thousand, eighty-one".