785561541 has 32 divisors (see below), whose sum is σ = 1128399360. Its totient is φ = 485097984.

The previous prime is 785561519. The next prime is 785561549. The reversal of 785561541 is 145165587.

It is not a de Polignac number, because 785561541 - 2¹⁴ = 785545157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 785561493 and 785561502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (785561549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233316 + ... + 236658.

It is an arithmetic number, because the mean of its divisors is an integer number (35262480).

Almost surely, 2^785561541 is an apocalyptic number.

It is an amenable number.

785561541 is a deficient number, since it is larger than the sum of its proper divisors (342837819).

785561541 is a wasteful number, since it uses less digits than its factorization.

785561541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3485.

The product of its digits is 168000, while the sum is 42.

The square root of 785561541 is about 28027.8707896265. The cubic root of 785561541 is about 922.6990450410.

It can be divided in two parts, 7855 and 61541, that added together give a palindrome (69396).

The spelling of 785561541 in words is "seven hundred eighty-five million, five hundred sixty-one thousand, five hundred forty-one".