786535961 has 4 divisors (see below), whose sum is σ = 786735972. Its totient is φ = 786335952.

The previous prime is 786535949. The next prime is 786535993. The reversal of 786535961 is 169535687.

It is a happy number.

786535961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 169535687 = 1361 ⋅124567.

It can be written as a sum of positive squares in 2 ways, for example, as 278890000 + 507645961 = 16700^2 + 22531^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-786535961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (786535861) 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, 93986 + ... + 102011.

It is an arithmetic number, because the mean of its divisors is an integer number (196683993).

Almost surely, 2^786535961 is an apocalyptic number.

It is an amenable number.

786535961 is a deficient number, since it is larger than the sum of its proper divisors (200011).

786535961 is a wasteful number, since it uses less digits than its factorization.

786535961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200010.

The product of its digits is 1360800, while the sum is 50.

The square root of 786535961 is about 28045.2484567351. The cubic root of 786535961 is about 923.0803964109.

The spelling of 786535961 in words is "seven hundred eighty-six million, five hundred thirty-five thousand, nine hundred sixty-one".