997462751 has 2 divisors, whose sum is σ = 997462752. Its totient is φ = 997462750.

The previous prime is 997462747. The next prime is 997462757. The reversal of 997462751 is 157264799.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 997462751 - 2² = 997462747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 997462751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997462757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498731375 + 498731376.

It is an arithmetic number, because the mean of its divisors is an integer number (498731376).

Almost surely, 2^997462751 is an apocalyptic number.

997462751 is a deficient number, since it is larger than the sum of its proper divisors (1).

997462751 is an equidigital number, since it uses as much as digits as its factorization.

997462751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 50.

The square root of 997462751 is about 31582.6336932182. The cubic root of 997462751 is about 999.1535340309.

The spelling of 997462751 in words is "nine hundred ninety-seven million, four hundred sixty-two thousand, seven hundred fifty-one".