675172785 has 32 divisors (see below), whose sum is σ = 1241533440. Its totient is φ = 306917568.

The previous prime is 675172783. The next prime is 675172787. The reversal of 675172785 is 587271576.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (675172783) and next prime (675172787).

It is not a de Polignac number, because 675172785 - 2¹ = 675172783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (675172783) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 834 + ... + 36756.

It is an arithmetic number, because the mean of its divisors is an integer number (38797920).

Almost surely, 2^675172785 is an apocalyptic number.

It is an amenable number.

675172785 is a deficient number, since it is larger than the sum of its proper divisors (566360655).

675172785 is a wasteful number, since it uses less digits than its factorization.

675172785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36117.

The product of its digits is 823200, while the sum is 48.

The square root of 675172785 is about 25984.0871496383. The cubic root of 675172785 is about 877.2801634345.

The spelling of 675172785 in words is "six hundred seventy-five million, one hundred seventy-two thousand, seven hundred eighty-five".