72955219 has 8 divisors (see below), whose sum is σ = 74792432. Its totient is φ = 71124480.

The previous prime is 72955217. The next prime is 72955249. The reversal of 72955219 is 91255927.

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

It is a cyclic number.

It is not a de Polignac number, because 72955219 - 2¹ = 72955217 is a prime.

It is a super-2 number, since 2×72955219² = 10644927958675922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72955217) 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, 27679 + ... + 30199.

It is an arithmetic number, because the mean of its divisors is an integer number (9349054).

Almost surely, 2^72955219 is an apocalyptic number.

72955219 is a deficient number, since it is larger than the sum of its proper divisors (1837213).

72955219 is a wasteful number, since it uses less digits than its factorization.

72955219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3237.

The product of its digits is 56700, while the sum is 40.

The square root of 72955219 is about 8541.3827334923. The cubic root of 72955219 is about 417.8484432587.

The spelling of 72955219 in words is "seventy-two million, nine hundred fifty-five thousand, two hundred nineteen".