7272998237 has 2 divisors, whose sum is σ = 7272998238. Its totient is φ = 7272998236.

The previous prime is 7272998233. The next prime is 7272998261. The reversal of 7272998237 is 7328992727.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3845364121 + 3427634116 = 62011^2 + 58546^2 .

It is a cyclic number.

It is not a de Polignac number, because 7272998237 - 2² = 7272998233 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7272998231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3636499118 + 3636499119.

It is an arithmetic number, because the mean of its divisors is an integer number (3636499119).

Almost surely, 2^7272998237 is an apocalyptic number.

It is an amenable number.

7272998237 is a deficient number, since it is larger than the sum of its proper divisors (1).

7272998237 is an equidigital number, since it uses as much as digits as its factorization.

7272998237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5334336, while the sum is 56.

The square root of 7272998237 is about 85281.8751963159. The cubic root of 7272998237 is about 1937.4826736820.

The spelling of 7272998237 in words is "seven billion, two hundred seventy-two million, nine hundred ninety-eight thousand, two hundred thirty-seven".