675038309 has 12 divisors (see below), whose sum is σ = 760087020. Its totient is φ = 598699200.

The previous prime is 675038291. The next prime is 675038311. The reversal of 675038309 is 903830576.

It can be written as a sum of positive squares in 2 ways, for example, as 142444225 + 532594084 = 11935^2 + 23078^2 .

It is not a de Polignac number, because 675038309 - 2²⁸ = 406602853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675038359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63074 + ... + 72995.

It is an arithmetic number, because the mean of its divisors is an integer number (63340585).

Almost surely, 2^675038309 is an apocalyptic number.

It is an amenable number.

675038309 is a deficient number, since it is larger than the sum of its proper divisors (85048711).

675038309 is a wasteful number, since it uses less digits than its factorization.

675038309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136132 (or 136121 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 675038309 is about 25981.4993601216. The cubic root of 675038309 is about 877.2219161419.

The spelling of 675038309 in words is "six hundred seventy-five million, thirty-eight thousand, three hundred nine".