72786143 has 8 divisors (see below), whose sum is σ = 77048400. Its totient is φ = 68640768.

The previous prime is 72786139. The next prime is 72786157. The reversal of 72786143 is 34168727.

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 72786143 - 2² = 72786139 is a prime.

It is a super-2 number, since 2×72786143² = 10595645225632898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72786097 and 72786106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72780143) 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, 27938 + ... + 30431.

It is an arithmetic number, because the mean of its divisors is an integer number (9631050).

Almost surely, 2^72786143 is an apocalyptic number.

72786143 is a deficient number, since it is larger than the sum of its proper divisors (4262257).

72786143 is a wasteful number, since it uses less digits than its factorization.

72786143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58441.

The product of its digits is 56448, while the sum is 38.

The square root of 72786143 is about 8531.4795317108. The cubic root of 72786143 is about 417.5254013015.

The spelling of 72786143 in words is "seventy-two million, seven hundred eighty-six thousand, one hundred forty-three".