7272787 has 8 divisors (see below), whose sum is σ = 7727616. Its totient is φ = 6820992.

The previous prime is 7272779. The next prime is 7272791. The reversal of 7272787 is 7872727.

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 7272787 - 2³ = 7272779 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

7272787 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7272737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5953 + ... + 7069.

It is an arithmetic number, because the mean of its divisors is an integer number (965952).

Almost surely, 2^7272787 is an apocalyptic number.

7272787 is a deficient number, since it is larger than the sum of its proper divisors (454829).

7272787 is a wasteful number, since it uses less digits than its factorization.

7272787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517.

The product of its digits is 76832, while the sum is 40.

The square root of 7272787 is about 2696.8105235630. The cubic root of 7272787 is about 193.7463916081.

The spelling of 7272787 in words is "seven million, two hundred seventy-two thousand, seven hundred eighty-seven".