993061389 has 8 divisors (see below), whose sum is σ = 1359868000. Its totient is φ = 644147856.

The previous prime is 993061367. The next prime is 993061411. The reversal of 993061389 is 983160399.

It is a happy number.

993061389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (993061367) and next prime (993061411).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 993061389 - 2⁵ = 993061357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993061319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4473139 + ... + 4473360.

It is an arithmetic number, because the mean of its divisors is an integer number (169983500).

Almost surely, 2^993061389 is an apocalyptic number.

It is an amenable number.

993061389 is a deficient number, since it is larger than the sum of its proper divisors (366806611).

993061389 is a wasteful number, since it uses less digits than its factorization.

993061389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8946539.

The product of its (nonzero) digits is 314928, while the sum is 48.

The square root of 993061389 is about 31512.8765586387. The cubic root of 993061389 is about 997.6817595810.

The spelling of 993061389 in words is "nine hundred ninety-three million, sixty-one thousand, three hundred eighty-nine".