75730331 has 2 divisors, whose sum is σ = 75730332. Its totient is φ = 75730330.

The previous prime is 75730327. The next prime is 75730337. The reversal of 75730331 is 13303757.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75730331 - 2² = 75730327 is a prime.

It is a super-2 number, since 2×75730331² = 11470166066739122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75730294 and 75730303.

It is not a weakly prime, because it can be changed into another prime (75730337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37865165 + 37865166.

It is an arithmetic number, because the mean of its divisors is an integer number (37865166).

Almost surely, 2^75730331 is an apocalyptic number.

75730331 is a deficient number, since it is larger than the sum of its proper divisors (1).

75730331 is an equidigital number, since it uses as much as digits as its factorization.

75730331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6615, while the sum is 29.

The square root of 75730331 is about 8702.3175648789. The cubic root of 75730331 is about 423.0807689475.

The spelling of 75730331 in words is "seventy-five million, seven hundred thirty thousand, three hundred thirty-one".