8485438061 has 4 divisors (see below), whose sum is σ = 8486280732. Its totient is φ = 8484595392.

The previous prime is 8485438051. The next prime is 8485438069. The reversal of 8485438061 is 1608345848.

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 3093473161 + 5391964900 = 55619^2 + 73430^2 .

It is a cyclic number.

It is not a de Polignac number, because 8485438061 - 2²⁶ = 8418329197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8485437997 and 8485438015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8485438069) 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, 406046 + ... + 426431.

It is an arithmetic number, because the mean of its divisors is an integer number (2121570183).

Almost surely, 2^8485438061 is an apocalyptic number.

It is an amenable number.

8485438061 is a deficient number, since it is larger than the sum of its proper divisors (842671).

8485438061 is a wasteful number, since it uses less digits than its factorization.

8485438061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842670.

The product of its (nonzero) digits is 737280, while the sum is 47.

The square root of 8485438061 is about 92116.4375179588. The cubic root of 8485438061 is about 2039.6614571012.

The spelling of 8485438061 in words is "eight billion, four hundred eighty-five million, four hundred thirty-eight thousand, sixty-one".