72973814 has 16 divisors (see below), whose sum is σ = 113418240. Its totient is φ = 35176680.

The previous prime is 72973811. The next prime is 72973829. The reversal of 72973814 is 41837927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72973811) 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 7 ways as a sum of consecutive naturals, for example, 15467 + ... + 19625.

It is an arithmetic number, because the mean of its divisors is an integer number (7088640).

Almost surely, 2^72973814 is an apocalyptic number.

72973814 is a deficient number, since it is larger than the sum of its proper divisors (40444426).

72973814 is a wasteful number, since it uses less digits than its factorization.

72973814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4475.

The product of its digits is 84672, while the sum is 41.

The square root of 72973814 is about 8542.4711881282. The cubic root of 72973814 is about 417.8839409785.

It can be divided in two parts, 7297 and 3814, that added together give a palindrome (11111).

The spelling of 72973814 in words is "seventy-two million, nine hundred seventy-three thousand, eight hundred fourteen".