45889993 has 2 divisors, whose sum is σ = 45889994. Its totient is φ = 45889992.

The previous prime is 45889973. The next prime is 45889999. The reversal of 45889993 is 39998854.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29463184 + 16426809 = 5428^2 + 4053^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45889993 is a prime.

It is not a weakly prime, because it can be changed into another prime (45889999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22944996 + 22944997.

It is an arithmetic number, because the mean of its divisors is an integer number (22944997).

Almost surely, 2^45889993 is an apocalyptic number.

It is an amenable number.

45889993 is a deficient number, since it is larger than the sum of its proper divisors (1).

45889993 is an equidigital number, since it uses as much as digits as its factorization.

45889993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 55.

The square root of 45889993 is about 6774.2153051110. The cubic root of 45889993 is about 358.0189356733.

The spelling of 45889993 in words is "forty-five million, eight hundred eighty-nine thousand, nine hundred ninety-three".