1085647473 has 6 divisors (see below), whose sum is σ = 1568157474. Its totient is φ = 723764976.

The previous prime is 1085647469. The next prime is 1085647481. The reversal of 1085647473 is 3747465801.

1085647473 is a `hidden beast` number, since 10 + 8 + 564 + 7 + 4 + 73 = 666.

It can be written as a sum of positive squares in only one way, i.e., 786634209 + 299013264 = 28047^2 + 17292^2 .

It is not a de Polignac number, because 1085647473 - 2² = 1085647469 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1085647463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60313740 + ... + 60313757.

It is an arithmetic number, because the mean of its divisors is an integer number (261359579).

Almost surely, 2^1085647473 is an apocalyptic number.

It is an amenable number.

1085647473 is a deficient number, since it is larger than the sum of its proper divisors (482510001).

1085647473 is a wasteful number, since it uses less digits than its factorization.

1085647473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120627503 (or 120627500 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 1085647473 is about 32949.1649818322. The cubic root of 1085647473 is about 1027.7708011612.

The spelling of 1085647473 in words is "one billion, eighty-five million, six hundred forty-seven thousand, four hundred seventy-three".