761720 has 32 divisors (see below), whose sum is σ = 1738800. Its totient is φ = 300288.

The previous prime is 761713. The next prime is 761731. The reversal of 761720 is 27167.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

761720 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 5411 + ... + 5549.

2⁷⁶¹⁷²⁰ is an apocalyptic number.

It is an amenable number.

761720 is an abundant number, since it is smaller than the sum of its proper divisors (977080).

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

761720 is a wasteful number, since it uses less digits than its factorization.

761720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 761720 is about 872.7657188501. The cubic root of 761720 is about 91.3268446323.

Adding to 761720 its reverse (27167), we get a palindrome (788887).

The spelling of 761720 in words is "seven hundred sixty-one thousand, seven hundred twenty".