72849493 has 4 divisors (see below), whose sum is σ = 73405728. Its totient is φ = 72293260.

The previous prime is 72849481. The next prime is 72849499. The reversal of 72849493 is 39494827.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39494827 = 1759 ⋅22453.

It is a cyclic number.

It is not a de Polignac number, because 72849493 - 2⁵ = 72849461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72849499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277921 + ... + 278182.

It is an arithmetic number, because the mean of its divisors is an integer number (18351432).

Almost surely, 2^72849493 is an apocalyptic number.

It is an amenable number.

72849493 is a deficient number, since it is larger than the sum of its proper divisors (556235).

72849493 is a wasteful number, since it uses less digits than its factorization.

72849493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556234.

The product of its digits is 435456, while the sum is 46.

The square root of 72849493 is about 8535.1914448359. The cubic root of 72849493 is about 417.6464983633.

The spelling of 72849493 in words is "seventy-two million, eight hundred forty-nine thousand, four hundred ninety-three".