993943007 has 2 divisors, whose sum is σ = 993943008. Its totient is φ = 993943006.

The previous prime is 993942949. The next prime is 993943031. The reversal of 993943007 is 700349399.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 993943007 - 2²⁶ = 926834143 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993943207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496971503 + 496971504.

It is an arithmetic number, because the mean of its divisors is an integer number (496971504).

Almost surely, 2^993943007 is an apocalyptic number.

993943007 is a deficient number, since it is larger than the sum of its proper divisors (1).

993943007 is an equidigital number, since it uses as much as digits as its factorization.

993943007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 183708, while the sum is 44.

The square root of 993943007 is about 31526.8616738171. The cubic root of 993943007 is about 997.9769122092.

The spelling of 993943007 in words is "nine hundred ninety-three million, nine hundred forty-three thousand, seven".