45427979 has 2 divisors, whose sum is σ = 45427980. Its totient is φ = 45427978.

The previous prime is 45427969. The next prime is 45428017. The reversal of 45427979 is 97972454.

45427979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45427979 - 2²⁰ = 44379403 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45427939) 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, 22713989 + 22713990.

It is an arithmetic number, because the mean of its divisors is an integer number (22713990).

Almost surely, 2^45427979 is an apocalyptic number.

45427979 is a deficient number, since it is larger than the sum of its proper divisors (1).

45427979 is an equidigital number, since it uses as much as digits as its factorization.

45427979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 47.

The square root of 45427979 is about 6740.0281156684. The cubic root of 45427979 is about 356.8133860320.

It can be divided in two parts, 4542 and 7979, that added together give a palindrome (12521).

The spelling of 45427979 in words is "forty-five million, four hundred twenty-seven thousand, nine hundred seventy-nine".