997287802 has 24 divisors (see below), whose sum is σ = 1717779168. Its totient is φ = 425380800.

The previous prime is 997287791. The next prime is 997287817. The reversal of 997287802 is 208782799.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 997287802.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 2250993 + ... + 2251435.

It is an arithmetic number, because the mean of its divisors is an integer number (71574132).

Almost surely, 2^997287802 is an apocalyptic number.

997287802 is a deficient number, since it is larger than the sum of its proper divisors (720491366).

997287802 is an equidigital number, since it uses as much as digits as its factorization.

997287802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 997287802 is about 31579.8638692443. The cubic root of 997287802 is about 999.0951154309.

The spelling of 997287802 in words is "nine hundred ninety-seven million, two hundred eighty-seven thousand, eight hundred two".