75338761 has 2 divisors, whose sum is σ = 75338762. Its totient is φ = 75338760.

The previous prime is 75338759. The next prime is 75338801. The reversal of 75338761 is 16783357.

It is an a-pointer prime, because the next prime (75338801) can be obtained adding 75338761 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66928761 + 8410000 = 8181^2 + 2900^2 .

It is a cyclic number.

It is not a de Polignac number, because 75338761 - 2¹ = 75338759 is a prime.

Together with 75338759, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (75335761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37669380 + 37669381.

It is an arithmetic number, because the mean of its divisors is an integer number (37669381).

Almost surely, 2^75338761 is an apocalyptic number.

It is an amenable number.

75338761 is a deficient number, since it is larger than the sum of its proper divisors (1).

75338761 is an equidigital number, since it uses as much as digits as its factorization.

75338761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 40.

The square root of 75338761 is about 8679.7903776531. The cubic root of 75338761 is about 422.3503170618.

The spelling of 75338761 in words is "seventy-five million, three hundred thirty-eight thousand, seven hundred sixty-one".