761636 has 6 divisors (see below), whose sum is σ = 1332870. Its totient is φ = 380816.

The previous prime is 761633. The next prime is 761669. The reversal of 761636 is 636167.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 732736 + 28900 = 856^2 + 170^2 .

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 761599 and 761608.

It is not an unprimeable number, because it can be changed into a prime (761633) 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 as a sum of consecutive naturals, namely, 95201 + ... + 95208.

It is an arithmetic number, because the mean of its divisors is an integer number (222145).

2⁷⁶¹⁶³⁶ is an apocalyptic number.

It is an amenable number.

761636 is a deficient number, since it is larger than the sum of its proper divisors (571234).

761636 is a wasteful number, since it uses less digits than its factorization.

761636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190413 (or 190411 counting only the distinct ones).

The product of its digits is 4536, while the sum is 29.

The square root of 761636 is about 872.7175946433. The cubic root of 761636 is about 91.3234874333.

The spelling of 761636 in words is "seven hundred sixty-one thousand, six hundred thirty-six".