83030072 has 16 divisors (see below), whose sum is σ = 159889560. Its totient is φ = 40392864.

The previous prime is 83030071. The next prime is 83030099. The reversal of 83030072 is 27003038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83030071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139958 + ... + 140549.

Almost surely, 2^83030072 is an apocalyptic number.

It is an amenable number.

83030072 is a deficient number, since it is larger than the sum of its proper divisors (76859488).

83030072 is a wasteful number, since it uses less digits than its factorization.

83030072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280550 (or 280546 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 83030072 is about 9112.0838450927. The cubic root of 83030072 is about 436.2597419849.

The spelling of 83030072 in words is "eighty-three million, thirty thousand, seventy-two".