7688461 has 6 divisors (see below), whose sum is σ = 8451086. Its totient is φ = 6989400.

The previous prime is 7688459. The next prime is 7688491. The reversal of 7688461 is 1648867.

It can be written as a sum of positive squares in only one way, i.e., 7322436 + 366025 = 2706^2 + 605^2 .

It is not a de Polignac number, because 7688461 - 2¹ = 7688459 is a prime.

It is a super-2 number, since 2×7688461² = 118224865097042, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7688431) 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 5 ways as a sum of consecutive naturals, for example, 31650 + ... + 31891.

Almost surely, 2^7688461 is an apocalyptic number.

It is an amenable number.

7688461 is a deficient number, since it is larger than the sum of its proper divisors (762625).

7688461 is a wasteful number, since it uses less digits than its factorization.

7688461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63563 (or 63552 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 7688461 is about 2772.8074220905. The cubic root of 7688461 is about 197.3693928985.

It can be divided in two parts, 768 and 8461, that added together give a palindrome (9229).

The spelling of 7688461 in words is "seven million, six hundred eighty-eight thousand, four hundred sixty-one".