999993377 has 2 divisors, whose sum is σ = 999993378. Its totient is φ = 999993376.

The previous prime is 999993367. The next prime is 999993439. The reversal of 999993377 is 773399999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 788261776 + 211731601 = 28076^2 + 14551^2 .

It is a cyclic number.

It is not a de Polignac number, because 999993377 - 2²² = 995799073 is a prime.

It is a zygodrome in base 10.

It is not a weakly prime, because it can be changed into another prime (999993367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499996688 + 499996689.

It is an arithmetic number, because the mean of its divisors is an integer number (499996689).

Almost surely, 2^999993377 is an apocalyptic number.

It is an amenable number.

999993377 is a deficient number, since it is larger than the sum of its proper divisors (1).

999993377 is an equidigital number, since it uses as much as digits as its factorization.

999993377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26040609, while the sum is 65.

The square root of 999993377 is about 31622.6718826857. The cubic root of 999993377 is about 999.9977923285.

The spelling of 999993377 in words is "nine hundred ninety-nine million, nine hundred ninety-three thousand, three hundred seventy-seven".