45477689 has 2 divisors, whose sum is σ = 45477690. Its totient is φ = 45477688.

The previous prime is 45477667. The next prime is 45477709. The reversal of 45477689 is 98677454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45333289 + 144400 = 6733^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 45477689 - 2⁸ = 45477433 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (45477629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22738844 + 22738845.

It is an arithmetic number, because the mean of its divisors is an integer number (22738845).

Almost surely, 2^45477689 is an apocalyptic number.

It is an amenable number.

45477689 is a deficient number, since it is larger than the sum of its proper divisors (1).

45477689 is an equidigital number, since it uses as much as digits as its factorization.

45477689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 50.

The square root of 45477689 is about 6743.7147774798. The cubic root of 45477689 is about 356.9434874074.

The spelling of 45477689 in words is "forty-five million, four hundred seventy-seven thousand, six hundred eighty-nine".