72752743 has 8 divisors (see below), whose sum is σ = 83289600. Its totient is φ = 62251800.

The previous prime is 72752717. The next prime is 72752747. The reversal of 72752743 is 34725727.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72752743 is a prime.

It is a super-2 number, since 2×72752743² = 10585923228048098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72752747) 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, 4483 + ... + 12868.

It is an arithmetic number, because the mean of its divisors is an integer number (10411200).

Almost surely, 2^72752743 is an apocalyptic number.

72752743 is a deficient number, since it is larger than the sum of its proper divisors (10536857).

72752743 is a wasteful number, since it uses less digits than its factorization.

72752743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17957.

The product of its digits is 82320, while the sum is 37.

The square root of 72752743 is about 8529.5218506080. The cubic root of 72752743 is about 417.4615270463.

The spelling of 72752743 in words is "seventy-two million, seven hundred fifty-two thousand, seven hundred forty-three".