997535351 has 2 divisors, whose sum is σ = 997535352. Its totient is φ = 997535350.

The previous prime is 997535347. The next prime is 997535353. The reversal of 997535351 is 153535799.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 997535351 - 2² = 997535347 is a prime.

It is a Sophie Germain prime.

Together with 997535353, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 997535296 and 997535305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997535353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498767675 + 498767676.

It is an arithmetic number, because the mean of its divisors is an integer number (498767676).

Almost surely, 2^997535351 is an apocalyptic number.

997535351 is a deficient number, since it is larger than the sum of its proper divisors (1).

997535351 is an equidigital number, since it uses as much as digits as its factorization.

997535351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 637875, while the sum is 47.

The square root of 997535351 is about 31583.7830381353. The cubic root of 997535351 is about 999.1777744638.

The spelling of 997535351 in words is "nine hundred ninety-seven million, five hundred thirty-five thousand, three hundred fifty-one".