761680 has 20 divisors (see below), whose sum is σ = 1771092. Its totient is φ = 304640.

The previous prime is 761671. The next prime is 761681. The reversal of 761680 is 86167.

It can be written as a sum of positive squares in 2 ways, for example, as 304704 + 456976 = 552^2 + 676^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761681) 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, 4681 + ... + 4840.

2⁷⁶¹⁶⁸⁰ is an apocalyptic number.

It is an amenable number.

761680 is an abundant number, since it is smaller than the sum of its proper divisors (1009412).

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

761680 is a wasteful number, since it uses less digits than its factorization.

761680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9534 (or 9528 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 761680 is about 872.7428028921. The cubic root of 761680 is about 91.3252459969.

It can be divided in two parts, 761 and 680, that added together give a palindrome (1441).

The spelling of 761680 in words is "seven hundred sixty-one thousand, six hundred eighty".