72854739 has 12 divisors (see below), whose sum is σ = 108079296. Its totient is φ = 47256912.

The previous prime is 72854729. The next prime is 72854753. The reversal of 72854739 is 93745827.

72854739 is a `hidden beast` number, since 72 + 8 + 547 + 39 = 666.

It is not a de Polignac number, because 72854739 - 2⁴ = 72854723 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 72854694 and 72854703.

It is not an unprimeable number, because it can be changed into a prime (72854729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109059 + ... + 109724.

It is an arithmetic number, because the mean of its divisors is an integer number (9006608).

Almost surely, 2^72854739 is an apocalyptic number.

72854739 is a deficient number, since it is larger than the sum of its proper divisors (35224557).

72854739 is a wasteful number, since it uses less digits than its factorization.

72854739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218826 (or 218823 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 72854739 is about 8535.4987551988. The cubic root of 72854739 is about 417.6565232371.

The spelling of 72854739 in words is "seventy-two million, eight hundred fifty-four thousand, seven hundred thirty-nine".