72883547 has 4 divisors (see below), whose sum is σ = 79509336. Its totient is φ = 66257760.

The previous prime is 72883543. The next prime is 72883567. The reversal of 72883547 is 74538827.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74538827 = 11 ⋅6776257.

It is a cyclic number.

It is not a de Polignac number, because 72883547 - 2² = 72883543 is a prime.

It is a super-2 number, since 2×72883547² = 10624022846602418, 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 = 72883498 and 72883507.

It is not an unprimeable number, because it can be changed into a prime (72883541) 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, 3312878 + ... + 3312899.

It is an arithmetic number, because the mean of its divisors is an integer number (19877334).

Almost surely, 2^72883547 is an apocalyptic number.

72883547 is a deficient number, since it is larger than the sum of its proper divisors (6625789).

72883547 is a wasteful number, since it uses less digits than its factorization.

72883547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6625788.

The product of its digits is 376320, while the sum is 44.

The square root of 72883547 is about 8537.1861289303. The cubic root of 72883547 is about 417.7115654749.

The spelling of 72883547 in words is "seventy-two million, eight hundred eighty-three thousand, five hundred forty-seven".