75934321 has 2 divisors, whose sum is σ = 75934322. Its totient is φ = 75934320.

The previous prime is 75934307. The next prime is 75934343. The reversal of 75934321 is 12343957.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75498721 + 435600 = 8689^2 + 660^2 .

It is an emirp because it is prime and its reverse (12343957) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75934321 - 2⁵ = 75934289 is a prime.

It is a super-2 number, since 2×75934321² = 11532042211462082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75964321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37967160 + 37967161.

It is an arithmetic number, because the mean of its divisors is an integer number (37967161).

Almost surely, 2^75934321 is an apocalyptic number.

It is an amenable number.

75934321 is a deficient number, since it is larger than the sum of its proper divisors (1).

75934321 is an equidigital number, since it uses as much as digits as its factorization.

75934321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 34.

The square root of 75934321 is about 8714.0301238864. The cubic root of 75934321 is about 423.4603036724.

The spelling of 75934321 in words is "seventy-five million, nine hundred thirty-four thousand, three hundred twenty-one".