997053311 has 2 divisors, whose sum is σ = 997053312. Its totient is φ = 997053310.

The previous prime is 997053307. The next prime is 997053373. The reversal of 997053311 is 113350799.

It is a weak prime.

It is an emirp because it is prime and its reverse (113350799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 997053311 - 2² = 997053307 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 (997053011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498526655 + 498526656.

It is an arithmetic number, because the mean of its divisors is an integer number (498526656).

Almost surely, 2^997053311 is an apocalyptic number.

997053311 is a deficient number, since it is larger than the sum of its proper divisors (1).

997053311 is an equidigital number, since it uses as much as digits as its factorization.

997053311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25515, while the sum is 38.

The square root of 997053311 is about 31576.1509845643. The cubic root of 997053311 is about 999.0168039757.

The spelling of 997053311 in words is "nine hundred ninety-seven million, fifty-three thousand, three hundred eleven".