72193910 has 8 divisors (see below), whose sum is σ = 129949056. Its totient is φ = 28877560.

The previous prime is 72193909. The next prime is 72193921. The reversal of 72193910 is 1939127.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3609686 + ... + 3609705.

It is an arithmetic number, because the mean of its divisors is an integer number (16243632).

Almost surely, 2^72193910 is an apocalyptic number.

72193910 is a deficient number, since it is larger than the sum of its proper divisors (57755146).

72193910 is a wasteful number, since it uses less digits than its factorization.

72193910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7219398.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 72193910 is about 8496.6999476267. The cubic root of 72193910 is about 416.3899011806.

The spelling of 72193910 in words is "seventy-two million, one hundred ninety-three thousand, nine hundred ten".