75340785 has 16 divisors (see below), whose sum is σ = 129818304. Its totient is φ = 37090752.

The previous prime is 75340781. The next prime is 75340789. The reversal of 75340785 is 58704357.

It is an interprime number because it is at equal distance from previous prime (75340781) and next prime (75340789).

It is not a de Polignac number, because 75340785 - 2² = 75340781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (75340781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192987 + ... + 193376.

It is an arithmetic number, because the mean of its divisors is an integer number (8113644).

Almost surely, 2^75340785 is an apocalyptic number.

It is an amenable number.

75340785 is a deficient number, since it is larger than the sum of its proper divisors (54477519).

75340785 is a wasteful number, since it uses less digits than its factorization.

75340785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386384.

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 75340785 is about 8679.9069695475. The cubic root of 75340785 is about 422.3540992202.

The spelling of 75340785 in words is "seventy-five million, three hundred forty thousand, seven hundred eighty-five".