72974198 has 8 divisors (see below), whose sum is σ = 119412360. Its totient is φ = 33170080.

The previous prime is 72974197. The next prime is 72974201. The reversal of 72974198 is 89147927.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72974191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1658483 + ... + 1658526.

It is an arithmetic number, because the mean of its divisors is an integer number (14926545).

Almost surely, 2^72974198 is an apocalyptic number.

72974198 is a deficient number, since it is larger than the sum of its proper divisors (46438162).

72974198 is a wasteful number, since it uses less digits than its factorization.

72974198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3317022.

The product of its digits is 254016, while the sum is 47.

The square root of 72974198 is about 8542.4936640304. The cubic root of 72974198 is about 417.8846739681.

The spelling of 72974198 in words is "seventy-two million, nine hundred seventy-four thousand, one hundred ninety-eight".