997833371 has 2 divisors, whose sum is σ = 997833372. Its totient is φ = 997833370.

The previous prime is 997833307. The next prime is 997833373. The reversal of 997833371 is 173338799.

It is a strong prime.

It is an emirp because it is prime and its reverse (173338799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 997833371 - 2⁶ = 997833307 is a prime.

Together with 997833373, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (997833373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498916685 + 498916686.

It is an arithmetic number, because the mean of its divisors is an integer number (498916686).

Almost surely, 2^997833371 is an apocalyptic number.

997833371 is a deficient number, since it is larger than the sum of its proper divisors (1).

997833371 is an equidigital number, since it uses as much as digits as its factorization.

997833371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 857304, while the sum is 50.

The square root of 997833371 is about 31588.5006133561. The cubic root of 997833371 is about 999.2772681178.

The spelling of 997833371 in words is "nine hundred ninety-seven million, eight hundred thirty-three thousand, three hundred seventy-one".