72214097 has 4 divisors (see below), whose sum is σ = 74543616. Its totient is φ = 69884580.

The previous prime is 72214081. The next prime is 72214111. The reversal of 72214097 is 79041227.

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.

It is a cyclic number.

It is not a de Polignac number, because 72214097 - 2⁴ = 72214081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72264097) 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, 1164713 + ... + 1164774.

It is an arithmetic number, because the mean of its divisors is an integer number (18635904).

Almost surely, 2^72214097 is an apocalyptic number.

It is an amenable number.

72214097 is a deficient number, since it is larger than the sum of its proper divisors (2329519).

72214097 is a wasteful number, since it uses less digits than its factorization.

72214097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329518.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 72214097 is about 8497.8877963880. The cubic root of 72214097 is about 416.4287081454.

The spelling of 72214097 in words is "seventy-two million, two hundred fourteen thousand, ninety-seven".