75213723 has 16 divisors (see below), whose sum is σ = 113684480. Its totient is φ = 43848864.

The previous prime is 75213713. The next prime is 75213737. The reversal of 75213723 is 32731257.

It is not a de Polignac number, because 75213723 - 2⁶ = 75213659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75213713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50011 + ... + 51492.

It is an arithmetic number, because the mean of its divisors is an integer number (7105280).

Almost surely, 2^75213723 is an apocalyptic number.

75213723 is a deficient number, since it is larger than the sum of its proper divisors (38470757).

75213723 is a wasteful number, since it uses less digits than its factorization.

75213723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101538.

The product of its digits is 8820, while the sum is 30.

The square root of 75213723 is about 8672.5845628624. The cubic root of 75213723 is about 422.1165326593.

The spelling of 75213723 in words is "seventy-five million, two hundred thirteen thousand, seven hundred twenty-three".