75385961 has 12 divisors (see below), whose sum is σ = 88210692. Its totient is φ = 64235808.

The previous prime is 75385931. The next prime is 75385969. The reversal of 75385961 is 16958357.

It can be written as a sum of positive squares in 2 ways, for example, as 40398736 + 34987225 = 6356^2 + 5915^2 .

It is not a de Polignac number, because 75385961 - 2⁶ = 75385897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75385969) 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, 4031 + ... + 12923.

It is an arithmetic number, because the mean of its divisors is an integer number (7350891).

Almost surely, 2^75385961 is an apocalyptic number.

It is an amenable number.

75385961 is a deficient number, since it is larger than the sum of its proper divisors (12824731).

75385961 is a wasteful number, since it uses less digits than its factorization.

75385961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9080 (or 9073 counting only the distinct ones).

The product of its digits is 226800, while the sum is 44.

The square root of 75385961 is about 8682.5089115992. The cubic root of 75385961 is about 422.4384999708.

The spelling of 75385961 in words is "seventy-five million, three hundred eighty-five thousand, nine hundred sixty-one".