4393969037 has 2 divisors, whose sum is σ = 4393969038. Its totient is φ = 4393969036.

The previous prime is 4393969033. The next prime is 4393969123. The reversal of 4393969037 is 7309693934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4310447716 + 83521321 = 65654^2 + 9139^2 .

It is a cyclic number.

It is not a de Polignac number, because 4393969037 - 2² = 4393969033 is a prime.

It is a super-2 number, since 2×4393969037² = 38613927796229414738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4393969037.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4393969033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2196984518 + 2196984519.

It is an arithmetic number, because the mean of its divisors is an integer number (2196984519).

Almost surely, 2^4393969037 is an apocalyptic number.

It is an amenable number.

4393969037 is a deficient number, since it is larger than the sum of its proper divisors (1).

4393969037 is an equidigital number, since it uses as much as digits as its factorization.

4393969037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3306744, while the sum is 53.

The square root of 4393969037 is about 66287.0201246066. The cubic root of 4393969037 is about 1637.8935176220.

The spelling of 4393969037 in words is "four billion, three hundred ninety-three million, nine hundred sixty-nine thousand, thirty-seven".