72321094 has 24 divisors (see below), whose sum is σ = 115979688. Its totient is φ = 33815040.

The previous prime is 72321091. The next prime is 72321121. The reversal of 72321094 is 49012327.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72321091) 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 11 ways as a sum of consecutive naturals, for example, 121662 + ... + 122254.

It is an arithmetic number, because the mean of its divisors is an integer number (4832487).

Almost surely, 2^72321094 is an apocalyptic number.

72321094 is a deficient number, since it is larger than the sum of its proper divisors (43658594).

72321094 is a wasteful number, since it uses less digits than its factorization.

72321094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 72321094 is about 8504.1809717338. The cubic root of 72321094 is about 416.6342757398.

The spelling of 72321094 in words is "seventy-two million, three hundred twenty-one thousand, ninety-four".