997100963 has 2 divisors, whose sum is σ = 997100964. Its totient is φ = 997100962.

The previous prime is 997100959. The next prime is 997101013. The reversal of 997100963 is 369001799.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 997100963 - 2² = 997100959 is a prime.

It is not a weakly prime, because it can be changed into another prime (997160963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498550481 + 498550482.

It is an arithmetic number, because the mean of its divisors is an integer number (498550482).

Almost surely, 2^997100963 is an apocalyptic number.

997100963 is a deficient number, since it is larger than the sum of its proper divisors (1).

997100963 is an equidigital number, since it uses as much as digits as its factorization.

997100963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 997100963 is about 31576.9055323665. The cubic root of 997100963 is about 999.0327190025.

The spelling of 997100963 in words is "nine hundred ninety-seven million, one hundred thousand, nine hundred sixty-three".