997626814 has 8 divisors (see below), whose sum is σ = 1499774400. Its totient is φ = 497702016.

The previous prime is 997626803. The next prime is 997626853. The reversal of 997626814 is 418626799.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554574 + ... + 556369.

It is an arithmetic number, because the mean of its divisors is an integer number (187471800).

Almost surely, 2^997626814 is an apocalyptic number.

997626814 is a deficient number, since it is larger than the sum of its proper divisors (502147586).

997626814 is a wasteful number, since it uses less digits than its factorization.

997626814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111394.

The product of its digits is 1306368, while the sum is 52.

The square root of 997626814 is about 31585.2309473906. The cubic root of 997626814 is about 999.2083113946.

The spelling of 997626814 in words is "nine hundred ninety-seven million, six hundred twenty-six thousand, eight hundred fourteen".