72276005 has 8 divisors (see below), whose sum is σ = 90502272. Its totient is φ = 55306768.

The previous prime is 72275963. The next prime is 72276011. The reversal of 72276005 is 50067227.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72276005 - 2²² = 68081701 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 314129 + ... + 314358.

It is an arithmetic number, because the mean of its divisors is an integer number (11312784).

Almost surely, 2^72276005 is an apocalyptic number.

It is an amenable number.

72276005 is a deficient number, since it is larger than the sum of its proper divisors (18226267).

72276005 is a wasteful number, since it uses less digits than its factorization.

72276005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628515.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 72276005 is about 8501.5295682601. The cubic root of 72276005 is about 416.5476733985.

The spelling of 72276005 in words is "seventy-two million, two hundred seventy-six thousand, five".