768925261 has 4 divisors (see below), whose sum is σ = 828073372. Its totient is φ = 709777152.

The previous prime is 768925237. The next prime is 768925273. The reversal of 768925261 is 162529867.

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

It can be written as a sum of positive squares in 2 ways, for example, as 59768361 + 709156900 = 7731^2 + 26630^2 .

It is a cyclic number.

It is not a de Polignac number, because 768925261 - 2⁹ = 768924749 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 (768925291) 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, 29574036 + ... + 29574061.

It is an arithmetic number, because the mean of its divisors is an integer number (207018343).

Almost surely, 2^768925261 is an apocalyptic number.

It is an amenable number.

768925261 is a deficient number, since it is larger than the sum of its proper divisors (59148111).

768925261 is a wasteful number, since it uses less digits than its factorization.

768925261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59148110.

The product of its digits is 362880, while the sum is 46.

The square root of 768925261 is about 27729.5016363439. The cubic root of 768925261 is about 916.1390101477.

The spelling of 768925261 in words is "seven hundred sixty-eight million, nine hundred twenty-five thousand, two hundred sixty-one".