72605943 has 8 divisors (see below), whose sum is σ = 107564400. Its totient is φ = 48403944.

The previous prime is 72605941. The next prime is 72605947. The reversal of 72605943 is 34950627.

72605943 is a `hidden beast` number, since 7 + 2 + 60 + 594 + 3 = 666.

It is not a de Polignac number, because 72605943 - 2¹ = 72605941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72605898 and 72605907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72605941) 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, 1344528 + ... + 1344581.

It is an arithmetic number, because the mean of its divisors is an integer number (13445550).

Almost surely, 2^72605943 is an apocalyptic number.

72605943 is a deficient number, since it is larger than the sum of its proper divisors (34958457).

72605943 is a wasteful number, since it uses less digits than its factorization.

72605943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689118 (or 2689112 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 72605943 is about 8520.9120990655. The cubic root of 72605943 is about 417.1805542841.

It can be divided in two parts, 7260 and 5943, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 72605943 in words is "seventy-two million, six hundred five thousand, nine hundred forty-three".