761506 has 4 divisors (see below), whose sum is σ = 1142262. Its totient is φ = 380752.

The previous prime is 761489. The next prime is 761521. The reversal of 761506 is 605167.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 390625 + 370881 = 625^2 + 609^2 .

It is a congruent number.

It is an unprimeable number.

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, 190375 + ... + 190378.

2⁷⁶¹⁵⁰⁶ is an apocalyptic number.

761506 is a deficient number, since it is larger than the sum of its proper divisors (380756).

761506 is a wasteful number, since it uses less digits than its factorization.

761506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380755.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 761506 is about 872.6431114723. The cubic root of 761506 is about 91.3182912814.

The spelling of 761506 in words is "seven hundred sixty-one thousand, five hundred six".