44978693 has 2 divisors, whose sum is σ = 44978694. Its totient is φ = 44978692.

The previous prime is 44978677. The next prime is 44978707. The reversal of 44978693 is 39687944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38663524 + 6315169 = 6218^2 + 2513^2 .

It is a cyclic number.

It is not a de Polignac number, because 44978693 - 2⁴ = 44978677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44978603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22489346 + 22489347.

It is an arithmetic number, because the mean of its divisors is an integer number (22489347).

Almost surely, 2^44978693 is an apocalyptic number.

It is an amenable number.

44978693 is a deficient number, since it is larger than the sum of its proper divisors (1).

44978693 is an equidigital number, since it uses as much as digits as its factorization.

44978693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 50.

The square root of 44978693 is about 6706.6156144512. The cubic root of 44978693 is about 355.6331832711.

The spelling of 44978693 in words is "forty-four million, nine hundred seventy-eight thousand, six hundred ninety-three".