785528649 has 12 divisors (see below), whose sum is σ = 1136733936. Its totient is φ = 522725112.

The previous prime is 785528641. The next prime is 785528651. The reversal of 785528649 is 946825587.

785528649 is a `hidden beast` number, since 7 + 8 + 552 + 86 + 4 + 9 = 666.

It is not a de Polignac number, because 785528649 - 2³ = 785528641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 785528595 and 785528604.

It is not an unprimeable number, because it can be changed into a prime (785528641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74859 + ... + 84704.

It is an arithmetic number, because the mean of its divisors is an integer number (94727828).

Almost surely, 2^785528649 is an apocalyptic number.

It is an amenable number.

785528649 is a deficient number, since it is larger than the sum of its proper divisors (351205287).

785528649 is a wasteful number, since it uses less digits than its factorization.

785528649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160116 (or 160113 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The square root of 785528649 is about 28027.2840104067. The cubic root of 785528649 is about 922.6861668475.

The spelling of 785528649 in words is "seven hundred eighty-five million, five hundred twenty-eight thousand, six hundred forty-nine".