785251461 has 16 divisors (see below), whose sum is σ = 1055932416. Its totient is φ = 519055536.

The previous prime is 785251447. The next prime is 785251477. The reversal of 785251461 is 164152587.

It is not a de Polignac number, because 785251461 - 2¹⁰ = 785250437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (785251861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173716 + ... + 178178.

It is an arithmetic number, because the mean of its divisors is an integer number (65995776).

Almost surely, 2^785251461 is an apocalyptic number.

It is an amenable number.

785251461 is a deficient number, since it is larger than the sum of its proper divisors (270680955).

785251461 is a wasteful number, since it uses less digits than its factorization.

785251461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4952.

The product of its digits is 67200, while the sum is 39.

The square root of 785251461 is about 28022.3386069043. The cubic root of 785251461 is about 922.5776252421.

The spelling of 785251461 in words is "seven hundred eighty-five million, two hundred fifty-one thousand, four hundred sixty-one".