72516770 has 16 divisors (see below), whose sum is σ = 133308288. Its totient is φ = 28389360.

The previous prime is 72516767. The next prime is 72516793. The reversal of 72516770 is 7761527.

It is a self number, because there is not a number n which added to its sum of digits gives 72516770.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76676 + ... + 77615.

It is an arithmetic number, because the mean of its divisors is an integer number (8331768).

Almost surely, 2^72516770 is an apocalyptic number.

72516770 is a deficient number, since it is larger than the sum of its proper divisors (60791518).

72516770 is a wasteful number, since it uses less digits than its factorization.

72516770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154345.

The product of its (nonzero) digits is 20580, while the sum is 35.

The square root of 72516770 is about 8515.6778943311. The cubic root of 72516770 is about 417.0096936982.

The spelling of 72516770 in words is "seventy-two million, five hundred sixteen thousand, seven hundred seventy".