72884953 has 4 divisors (see below), whose sum is σ = 76053888. Its totient is φ = 69716020.

The previous prime is 72884951. The next prime is 72884983. The reversal of 72884953 is 35948827.

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: 35948827 = 1277 ⋅28151.

It is a cyclic number.

It is not a de Polignac number, because 72884953 - 2¹ = 72884951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72884951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1584433 + ... + 1584478.

It is an arithmetic number, because the mean of its divisors is an integer number (19013472).

Almost surely, 2^72884953 is an apocalyptic number.

It is an amenable number.

72884953 is a deficient number, since it is larger than the sum of its proper divisors (3168935).

72884953 is a wasteful number, since it uses less digits than its factorization.

72884953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3168934.

The product of its digits is 483840, while the sum is 46.

The square root of 72884953 is about 8537.2684741667. The cubic root of 72884953 is about 417.7142514889.

It can be divided in two parts, 72884 and 953, that added together give a palindrome (73837).

The spelling of 72884953 in words is "seventy-two million, eight hundred eighty-four thousand, nine hundred fifty-three".