75972073 has 4 divisors (see below), whose sum is σ = 76040848. Its totient is φ = 75903300.

The previous prime is 75972007. The next prime is 75972101. The reversal of 75972073 is 37027957.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75972073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75970073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32703 + ... + 34948.

It is an arithmetic number, because the mean of its divisors is an integer number (19010212).

Almost surely, 2^75972073 is an apocalyptic number.

It is an amenable number.

75972073 is a deficient number, since it is larger than the sum of its proper divisors (68775).

75972073 is a wasteful number, since it uses less digits than its factorization.

75972073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68774.

The product of its (nonzero) digits is 92610, while the sum is 40.

The square root of 75972073 is about 8716.1960166118. The cubic root of 75972073 is about 423.5304688037.

The spelling of 75972073 in words is "seventy-five million, nine hundred seventy-two thousand, seventy-three".