7272987 has 4 divisors (see below), whose sum is σ = 9697320. Its totient is φ = 4848656.

The previous prime is 7272971. The next prime is 7273001. The reversal of 7272987 is 7892727.

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 7272987 - 2⁴ = 7272971 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (7272907) 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, 1212162 + ... + 1212167.

It is an arithmetic number, because the mean of its divisors is an integer number (2424330).

Almost surely, 2^7272987 is an apocalyptic number.

7272987 is a deficient number, since it is larger than the sum of its proper divisors (2424333).

7272987 is a wasteful number, since it uses less digits than its factorization.

7272987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2424332.

The product of its digits is 98784, while the sum is 42.

The square root of 7272987 is about 2696.8476041482. The cubic root of 7272987 is about 193.7481675859.

The spelling of 7272987 in words is "seven million, two hundred seventy-two thousand, nine hundred eighty-seven".