44272993 has 2 divisors, whose sum is σ = 44272994. Its totient is φ = 44272992.

The previous prime is 44272939. The next prime is 44273003. The reversal of 44272993 is 39927244.

Together with previous prime (44272939) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43256929 + 1016064 = 6577^2 + 1008^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44272993 is a prime.

It is not a weakly prime, because it can be changed into another prime (44272903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22136496 + 22136497.

It is an arithmetic number, because the mean of its divisors is an integer number (22136497).

Almost surely, 2^44272993 is an apocalyptic number.

It is an amenable number.

44272993 is a deficient number, since it is larger than the sum of its proper divisors (1).

44272993 is an equidigital number, since it uses as much as digits as its factorization.

44272993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 44272993 is about 6653.7953830878. The cubic root of 44272993 is about 353.7634502330.

The spelling of 44272993 in words is "forty-four million, two hundred seventy-two thousand, nine hundred ninety-three".