75322993 has 2 divisors, whose sum is σ = 75322994. Its totient is φ = 75322992.

The previous prime is 75322987. The next prime is 75323023. The reversal of 75322993 is 39922357.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61905424 + 13417569 = 7868^2 + 3663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75322993 is a prime.

It is not a weakly prime, because it can be changed into another prime (75325993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37661496 + 37661497.

It is an arithmetic number, because the mean of its divisors is an integer number (37661497).

Almost surely, 2^75322993 is an apocalyptic number.

It is an amenable number.

75322993 is a deficient number, since it is larger than the sum of its proper divisors (1).

75322993 is an equidigital number, since it uses as much as digits as its factorization.

75322993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102060, while the sum is 40.

The square root of 75322993 is about 8678.8820132549. The cubic root of 75322993 is about 422.3208497846.

The spelling of 75322993 in words is "seventy-five million, three hundred twenty-two thousand, nine hundred ninety-three".