72327803 has 4 divisors (see below), whose sum is σ = 72546648. Its totient is φ = 72108960.

The previous prime is 72327799. The next prime is 72327833. The reversal of 72327803 is 30872327.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72327803 - 2² = 72327799 is a prime.

It is a super-2 number, since 2×72327803² = 10462622173613618, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72327803.

It is not an unprimeable number, because it can be changed into a prime (72327833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108926 + ... + 109587.

It is an arithmetic number, because the mean of its divisors is an integer number (18136662).

Almost surely, 2^72327803 is an apocalyptic number.

72327803 is a deficient number, since it is larger than the sum of its proper divisors (218845).

72327803 is a wasteful number, since it uses less digits than its factorization.

72327803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218844.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 72327803 is about 8504.5754156219. The cubic root of 72327803 is about 416.6471586244.

The spelling of 72327803 in words is "seventy-two million, three hundred twenty-seven thousand, eight hundred three".