75213993 has 8 divisors (see below), whose sum is σ = 101278656. Its totient is φ = 49646000.

The previous prime is 75213991. The next prime is 75213997. The reversal of 75213993 is 39931257.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75213993 - 2¹ = 75213991 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75213991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123813 + ... + 124418.

It is an arithmetic number, because the mean of its divisors is an integer number (12659832).

Almost surely, 2^75213993 is an apocalyptic number.

It is an amenable number.

75213993 is a deficient number, since it is larger than the sum of its proper divisors (26064663).

75213993 is a wasteful number, since it uses less digits than its factorization.

75213993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248335.

The product of its digits is 51030, while the sum is 39.

The square root of 75213993 is about 8672.6001291424. The cubic root of 75213993 is about 422.1170377592.

The spelling of 75213993 in words is "seventy-five million, two hundred thirteen thousand, nine hundred ninety-three".