997007051 has 2 divisors, whose sum is σ = 997007052. Its totient is φ = 997007050.

The previous prime is 997007029. The next prime is 997007087. The reversal of 997007051 is 150700799.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 997007051 - 2²² = 992812747 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 997006996 and 997007014.

It is not a weakly prime, because it can be changed into another prime (997007021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498503525 + 498503526.

It is an arithmetic number, because the mean of its divisors is an integer number (498503526).

Almost surely, 2^997007051 is an apocalyptic number.

997007051 is a deficient number, since it is larger than the sum of its proper divisors (1).

997007051 is an equidigital number, since it uses as much as digits as its factorization.

997007051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19845, while the sum is 38.

The square root of 997007051 is about 31575.4184612017. The cubic root of 997007051 is about 999.0013533702.

The spelling of 997007051 in words is "nine hundred ninety-seven million, seven thousand, fifty-one".