72063772 has 12 divisors (see below), whose sum is σ = 137576376. Its totient is φ = 32756240.

The previous prime is 72063703. The next prime is 72063779. The reversal of 72063772 is 27736027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72063779) 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, 818863 + ... + 818950.

It is an arithmetic number, because the mean of its divisors is an integer number (11464698).

Almost surely, 2^72063772 is an apocalyptic number.

It is an amenable number.

72063772 is a deficient number, since it is larger than the sum of its proper divisors (65512604).

72063772 is a wasteful number, since it uses less digits than its factorization.

72063772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637828 (or 1637826 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 34.

The square root of 72063772 is about 8489.0383436524. The cubic root of 72063772 is about 416.1395534630.

Adding to 72063772 its reverse (27736027), we get a palindrome (99799799).

The spelling of 72063772 in words is "seventy-two million, sixty-three thousand, seven hundred seventy-two".