997673255 has 8 divisors (see below), whose sum is σ = 1197687600. Its totient is φ = 797818816.

The previous prime is 997673251. The next prime is 997673269. The reversal of 997673255 is 552376799.

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

It is a cyclic number.

It is not a de Polignac number, because 997673255 - 2² = 997673251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 997673197 and 997673206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997673251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25790 + ... + 51579.

It is an arithmetic number, because the mean of its divisors is an integer number (149710950).

Almost surely, 2^997673255 is an apocalyptic number.

997673255 is the 25790-th pentagonal number.

997673255 is a deficient number, since it is larger than the sum of its proper divisors (200014345).

997673255 is a wasteful number, since it uses less digits than its factorization.

997673255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79953.

The product of its digits is 3572100, while the sum is 53.

The square root of 997673255 is about 31585.9661083843. The cubic root of 997673255 is about 999.2238160276.

The spelling of 997673255 in words is "nine hundred ninety-seven million, six hundred seventy-three thousand, two hundred fifty-five".