44078821 has 2 divisors, whose sum is σ = 44078822. Its totient is φ = 44078820.

The previous prime is 44078777. The next prime is 44078861. The reversal of 44078821 is 12887044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44076321 + 2500 = 6639^2 + 50^2 .

It is a cyclic number.

It is not a de Polignac number, because 44078821 - 2⁷ = 44078693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44078861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22039410 + 22039411.

It is an arithmetic number, because the mean of its divisors is an integer number (22039411).

Almost surely, 2^44078821 is an apocalyptic number.

It is an amenable number.

44078821 is a deficient number, since it is larger than the sum of its proper divisors (1).

44078821 is an equidigital number, since it uses as much as digits as its factorization.

44078821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 44078821 is about 6639.1882786979. The cubic root of 44078821 is about 353.2455150409.

The spelling of 44078821 in words is "forty-four million, seventy-eight thousand, eight hundred twenty-one".