993061439 has 2 divisors, whose sum is σ = 993061440. Its totient is φ = 993061438.

The previous prime is 993061423. The next prime is 993061469. The reversal of 993061439 is 934160399.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 993061439 - 2⁴ = 993061423 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 993061439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993061469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496530719 + 496530720.

It is an arithmetic number, because the mean of its divisors is an integer number (496530720).

Almost surely, 2^993061439 is an apocalyptic number.

993061439 is a deficient number, since it is larger than the sum of its proper divisors (1).

993061439 is an equidigital number, since it uses as much as digits as its factorization.

993061439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 44.

The square root of 993061439 is about 31512.8773519652. The cubic root of 993061439 is about 997.6817763252.

The spelling of 993061439 in words is "nine hundred ninety-three million, sixty-one thousand, four hundred thirty-nine".