44623993 has 2 divisors, whose sum is σ = 44623994. Its totient is φ = 44623992.

The previous prime is 44623939. The next prime is 44624003. The reversal of 44623993 is 39932644.

44623993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (44623939) 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., 43191184 + 1432809 = 6572^2 + 1197^2 .

It is a cyclic number.

It is not a de Polignac number, because 44623993 - 2¹³ = 44615801 is a prime.

It is equal to p_2696827 and since 44623993 and 2696827 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (44623093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22311996 + 22311997.

It is an arithmetic number, because the mean of its divisors is an integer number (22311997).

Almost surely, 2^44623993 is an apocalyptic number.

It is an amenable number.

44623993 is a deficient number, since it is larger than the sum of its proper divisors (1).

44623993 is an equidigital number, since it uses as much as digits as its factorization.

44623993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 40.

The square root of 44623993 is about 6680.1192354628. The cubic root of 44623993 is about 354.6958791955.

The spelling of 44623993 in words is "forty-four million, six hundred twenty-three thousand, nine hundred ninety-three".