75939401 has 2 divisors, whose sum is σ = 75939402. Its totient is φ = 75939400.

The previous prime is 75939389. The next prime is 75939403. The reversal of 75939401 is 10493957.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74046025 + 1893376 = 8605^2 + 1376^2 .

It is a cyclic number.

It is not a de Polignac number, because 75939401 - 2²² = 71745097 is a prime.

Together with 75939403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75939403) 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, 37969700 + 37969701.

It is an arithmetic number, because the mean of its divisors is an integer number (37969701).

Almost surely, 2^75939401 is an apocalyptic number.

It is an amenable number.

75939401 is a deficient number, since it is larger than the sum of its proper divisors (1).

75939401 is an equidigital number, since it uses as much as digits as its factorization.

75939401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 75939401 is about 8714.3216029706. The cubic root of 75939401 is about 423.4697466154.

The spelling of 75939401 in words is "seventy-five million, nine hundred thirty-nine thousand, four hundred one".