72098306 has 12 divisors (see below), whose sum is σ = 125804358. Its totient is φ = 30899232.

The previous prime is 72098291. The next prime is 72098333. The reversal of 72098306 is 60389027.

It can be written as a sum of positive squares in only one way, i.e., 72097081 + 1225 = 8491^2 + 35^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 367751 + ... + 367946.

Almost surely, 2^72098306 is an apocalyptic number.

72098306 is a deficient number, since it is larger than the sum of its proper divisors (53706052).

72098306 is a wasteful number, since it uses less digits than its factorization.

72098306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735713 (or 735706 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 72098306 is about 8491.0721348956. The cubic root of 72098306 is about 416.2060162082.

The spelling of 72098306 in words is "seventy-two million, ninety-eight thousand, three hundred six".