997101473 has 2 divisors, whose sum is σ = 997101474. Its totient is φ = 997101472.

The previous prime is 997101449. The next prime is 997101517. The reversal of 997101473 is 374101799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 986713744 + 10387729 = 31412^2 + 3223^2 .

It is a cyclic number.

It is not a de Polignac number, because 997101473 - 2¹² = 997097377 is a prime.

It is a super-2 number, since 2×997101473² = 1988422694917539458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 997101473.

It is not a weakly prime, because it can be changed into another prime (997101373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498550736 + 498550737.

It is an arithmetic number, because the mean of its divisors is an integer number (498550737).

Almost surely, 2^997101473 is an apocalyptic number.

It is an amenable number.

997101473 is a deficient number, since it is larger than the sum of its proper divisors (1).

997101473 is an equidigital number, since it uses as much as digits as its factorization.

997101473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 997101473 is about 31576.9136078876. The cubic root of 997101473 is about 999.0328893318.

The spelling of 997101473 in words is "nine hundred ninety-seven million, one hundred one thousand, four hundred seventy-three".