4439154397 has 2 divisors, whose sum is σ = 4439154398. Its totient is φ = 4439154396.

The previous prime is 4439154361. The next prime is 4439154449. The reversal of 4439154397 is 7934519344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3996009796 + 443144601 = 63214^2 + 21051^2 .

It is a cyclic number.

It is not a de Polignac number, because 4439154397 - 2³¹ = 2291670749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4439154397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4439154347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2219577198 + 2219577199.

It is an arithmetic number, because the mean of its divisors is an integer number (2219577199).

Almost surely, 2^4439154397 is an apocalyptic number.

It is an amenable number.

4439154397 is a deficient number, since it is larger than the sum of its proper divisors (1).

4439154397 is an equidigital number, since it uses as much as digits as its factorization.

4439154397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 49.

The square root of 4439154397 is about 66626.9794977980. The cubic root of 4439154397 is about 1643.4888049618.

The spelling of 4439154397 in words is "four billion, four hundred thirty-nine million, one hundred fifty-four thousand, three hundred ninety-seven".