997816102 has 8 divisors (see below), whose sum is σ = 1499151816. Its totient is φ = 498098832.

The previous prime is 997816097. The next prime is 997816109. The reversal of 997816102 is 201618799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997816109) 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 in 3 ways as a sum of consecutive naturals, for example, 403068 + ... + 405535.

It is an arithmetic number, because the mean of its divisors is an integer number (187393977).

Almost surely, 2^997816102 is an apocalyptic number.

997816102 is a deficient number, since it is larger than the sum of its proper divisors (501335714).

997816102 is a wasteful number, since it uses less digits than its factorization.

997816102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809222.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 997816102 is about 31588.2272690317. The cubic root of 997816102 is about 999.2715034216.

The spelling of 997816102 in words is "nine hundred ninety-seven million, eight hundred sixteen thousand, one hundred two".