785632261 has 4 divisors (see below), whose sum is σ = 787963852. Its totient is φ = 783300672.

The previous prime is 785632249. The next prime is 785632279. The reversal of 785632261 is 162236587.

785632261 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.

It can be written as a sum of positive squares in 2 ways, for example, as 63904036 + 721728225 = 7994^2 + 26865^2 .

It is a cyclic number.

It is not a de Polignac number, because 785632261 - 2¹³ = 785624069 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 (785632291) 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, 1165290 + ... + 1165963.

It is an arithmetic number, because the mean of its divisors is an integer number (196990963).

Almost surely, 2^785632261 is an apocalyptic number.

It is an amenable number.

785632261 is a deficient number, since it is larger than the sum of its proper divisors (2331591).

785632261 is a wasteful number, since it uses less digits than its factorization.

785632261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331590.

The product of its digits is 120960, while the sum is 40.

The square root of 785632261 is about 28029.1323625973. The cubic root of 785632261 is about 922.7267328011.

The spelling of 785632261 in words is "seven hundred eighty-five million, six hundred thirty-two thousand, two hundred sixty-one".