72347146 has 8 divisors (see below), whose sum is σ = 109127520. Its totient is φ = 35971308.

The previous prime is 72347131. The next prime is 72347153. The reversal of 72347146 is 64174327.

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

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, 100686 + ... + 101401.

It is an arithmetic number, because the mean of its divisors is an integer number (13640940).

Almost surely, 2^72347146 is an apocalyptic number.

72347146 is a deficient number, since it is larger than the sum of its proper divisors (36780374).

72347146 is a wasteful number, since it uses less digits than its factorization.

72347146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202268.

The product of its digits is 28224, while the sum is 34.

The square root of 72347146 is about 8505.7125509860. The cubic root of 72347146 is about 416.6842973517.

The spelling of 72347146 in words is "seventy-two million, three hundred forty-seven thousand, one hundred forty-six".