72277089 has 8 divisors (see below), whose sum is σ = 99478272. Its totient is φ = 46630320.

The previous prime is 72277087. The next prime is 72277141. The reversal of 72277089 is 98077227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72277089 - 2¹ = 72277087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72277089.

It is not an unprimeable number, because it can be changed into a prime (72277087) 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 7 ways as a sum of consecutive naturals, for example, 388494 + ... + 388679.

It is an arithmetic number, because the mean of its divisors is an integer number (12434784).

Almost surely, 2^72277089 is an apocalyptic number.

It is an amenable number.

72277089 is a deficient number, since it is larger than the sum of its proper divisors (27201183).

72277089 is a wasteful number, since it uses less digits than its factorization.

72277089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777207.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 72277089 is about 8501.5933212546. The cubic root of 72277089 is about 416.5497558573.

The spelling of 72277089 in words is "seventy-two million, two hundred seventy-seven thousand, eighty-nine".