75670109 has 4 divisors (see below), whose sum is σ = 76419420. Its totient is φ = 74920800.

The previous prime is 75670099. The next prime is 75670129. The reversal of 75670109 is 90107657.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90107657 = 1907 ⋅47251.

It can be written as a sum of positive squares in 2 ways, for example, as 65966884 + 9703225 = 8122^2 + 3115^2 .

It is a cyclic number.

It is not a de Polignac number, because 75670109 - 2⁴ = 75670093 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 (75670129) 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 3 ways as a sum of consecutive naturals, for example, 374504 + ... + 374705.

It is an arithmetic number, because the mean of its divisors is an integer number (19104855).

Almost surely, 2^75670109 is an apocalyptic number.

It is an amenable number.

75670109 is a deficient number, since it is larger than the sum of its proper divisors (749311).

75670109 is a wasteful number, since it uses less digits than its factorization.

75670109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749310.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 75670109 is about 8698.8567639662. The cubic root of 75670109 is about 422.9685922875.

The spelling of 75670109 in words is "seventy-five million, six hundred seventy thousand, one hundred nine".