45478897 has 2 divisors, whose sum is σ = 45478898. Its totient is φ = 45478896.

The previous prime is 45478871. The next prime is 45478903. The reversal of 45478897 is 79887454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44036496 + 1442401 = 6636^2 + 1201^2 .

It is a cyclic number.

It is not a de Polignac number, because 45478897 - 2¹⁵ = 45446129 is a prime.

It is not a weakly prime, because it can be changed into another prime (45478847) 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, 22739448 + 22739449.

It is an arithmetic number, because the mean of its divisors is an integer number (22739449).

Almost surely, 2^45478897 is an apocalyptic number.

It is an amenable number.

45478897 is a deficient number, since it is larger than the sum of its proper divisors (1).

45478897 is an equidigital number, since it uses as much as digits as its factorization.

45478897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2257920, while the sum is 52.

The square root of 45478897 is about 6743.8043417644. The cubic root of 45478897 is about 356.9466478136.

The spelling of 45478897 in words is "forty-five million, four hundred seventy-eight thousand, eight hundred ninety-seven".