761353261 has 4 divisors (see below), whose sum is σ = 773834524. Its totient is φ = 748872000.

The previous prime is 761353253. The next prime is 761353283. The reversal of 761353261 is 162353167.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 162353167 = 2861 ⋅56747.

It can be written as a sum of positive squares in 2 ways, for example, as 28622500 + 732730761 = 5350^2 + 27069^2 .

It is a cyclic number.

It is not a de Polignac number, because 761353261 - 2³ = 761353253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761353561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6240540 + ... + 6240661.

It is an arithmetic number, because the mean of its divisors is an integer number (193458631).

Almost surely, 2^761353261 is an apocalyptic number.

It is an amenable number.

761353261 is a deficient number, since it is larger than the sum of its proper divisors (12481263).

761353261 is a wasteful number, since it uses less digits than its factorization.

761353261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12481262.

The product of its digits is 22680, while the sum is 34.

The square root of 761353261 is about 27592.6305560017. The cubic root of 761353261 is about 913.1218548706.

The spelling of 761353261 in words is "seven hundred sixty-one million, three hundred fifty-three thousand, two hundred sixty-one".