997430 has 16 divisors (see below), whose sum is σ = 2052000.
Its totient is φ = 341952.
The previous prime is 997427. The next prime is 997433. The reversal of 997430 is 34799.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (997427) and next prime (997433).
It is a nialpdrome in base 10.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (997433) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7055 + ... + 7194.
It is an arithmetic number, because the mean of its divisors is an integer number (128250).
2997430 is an apocalyptic number.
997430 is an abundant number, since it is smaller than the sum of its proper divisors (1054570).
It is a weird number, because it is abundant, but not a pseudoperfect number.
997430 is a wasteful number, since it uses less digits than its factorization.
997430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14263.
The product of its (nonzero) digits is 6804, while the sum is 32.
The square root of 997430 is about 998.7141733249.
The cubic root of 997430 is about 99.9142598406.
The spelling of 997430 in words is "nine hundred ninety-seven thousand, four hundred thirty".