675567945 has 112 divisors (see below), whose sum is σ = 1338618960. Its totient is φ = 325099008.

The previous prime is 675567943. The next prime is 675567953. The reversal of 675567945 is 549765576.

675567945 is a `hidden beast` number, since 6 + 75 + 567 + 9 + 4 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 109746576 + 565821369 = 10476^2 + 23787^2 .

It is not a de Polignac number, because 675567945 - 2¹ = 675567943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 675567891 and 675567900.

It is not an unprimeable number, because it can be changed into a prime (675567943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 2511271 + ... + 2511539.

It is an arithmetic number, because the mean of its divisors is an integer number (11951955).

Almost surely, 2^675567945 is an apocalyptic number.

675567945 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

675567945 is a deficient number, since it is larger than the sum of its proper divisors (663051015).

675567945 is a wasteful number, since it uses less digits than its factorization.

675567945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358 (or 343 counting only the distinct ones).

The product of its digits is 7938000, while the sum is 54.

The square root of 675567945 is about 25991.6899219731. The cubic root of 675567945 is about 877.4512793463.

The spelling of 675567945 in words is "six hundred seventy-five million, five hundred sixty-seven thousand, nine hundred forty-five".