997962127 has 2 divisors, whose sum is σ = 997962128. Its totient is φ = 997962126.

The previous prime is 997962109. The next prime is 997962151. The reversal of 997962127 is 721269799.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (721269799) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-997962127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997962827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498981063 + 498981064.

It is an arithmetic number, because the mean of its divisors is an integer number (498981064).

Almost surely, 2^997962127 is an apocalyptic number.

997962127 is a deficient number, since it is larger than the sum of its proper divisors (1).

997962127 is an equidigital number, since it uses as much as digits as its factorization.

997962127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 857304, while the sum is 52.

The square root of 997962127 is about 31590.5385677421. The cubic root of 997962127 is about 999.3202470406.

The spelling of 997962127 in words is "nine hundred ninety-seven million, nine hundred sixty-two thousand, one hundred twenty-seven".