997070951 has 2 divisors, whose sum is σ = 997070952. Its totient is φ = 997070950.

The previous prime is 997070939. The next prime is 997070957. The reversal of 997070951 is 159070799.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-997070951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 997070896 and 997070905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997070957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498535475 + 498535476.

It is an arithmetic number, because the mean of its divisors is an integer number (498535476).

Almost surely, 2^997070951 is an apocalyptic number.

997070951 is a deficient number, since it is larger than the sum of its proper divisors (1).

997070951 is an equidigital number, since it uses as much as digits as its factorization.

997070951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 178605, while the sum is 47.

The square root of 997070951 is about 31576.4303080636. The cubic root of 997070951 is about 999.0226955204.

The spelling of 997070951 in words is "nine hundred ninety-seven million, seventy thousand, nine hundred fifty-one".