985045757 has 4 divisors (see below), whose sum is σ = 1003631580. Its totient is φ = 966459936.

The previous prime is 985045729. The next prime is 985045793. The reversal of 985045757 is 757540589.

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 606587641 + 378458116 = 24629^2 + 19454^2 .

It is a cyclic number.

It is not a de Polignac number, because 985045757 - 2¹⁴ = 985029373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985045717) 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, 9292832 + ... + 9292937.

It is an arithmetic number, because the mean of its divisors is an integer number (250907895).

Almost surely, 2^985045757 is an apocalyptic number.

It is an amenable number.

985045757 is a deficient number, since it is larger than the sum of its proper divisors (18585823).

985045757 is a wasteful number, since it uses less digits than its factorization.

985045757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18585822.

The product of its (nonzero) digits is 1764000, while the sum is 50.

The square root of 985045757 is about 31385.4386141089. The cubic root of 985045757 is about 994.9901961106.

The spelling of 985045757 in words is "nine hundred eighty-five million, forty-five thousand, seven hundred fifty-seven".