75348985 has 4 divisors (see below), whose sum is σ = 90418788. Its totient is φ = 60279184.

The previous prime is 75348971. The next prime is 75348991. The reversal of 75348985 is 58984357.

75348985 = T₇₀₈₆ + T₇₀₈₇ + T₇₀₈₈.

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 22771984 + 52577001 = 4772^2 + 7251^2 .

It is a cyclic number.

It is not a de Polignac number, because 75348985 - 2⁵ = 75348953 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7534894 + ... + 7534903.

It is an arithmetic number, because the mean of its divisors is an integer number (22604697).

Almost surely, 2^75348985 is an apocalyptic number.

75348985 is the 7088-th centered triangular number.

It is an amenable number.

75348985 is a deficient number, since it is larger than the sum of its proper divisors (15069803).

75348985 is a wasteful number, since it uses less digits than its factorization.

75348985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15069802.

The product of its digits is 1209600, while the sum is 49.

The square root of 75348985 is about 8680.3793119886. The cubic root of 75348985 is about 422.3694215009.

The spelling of 75348985 in words is "seventy-five million, three hundred forty-eight thousand, nine hundred eighty-five".