997077223 has 8 divisors (see below), whose sum is σ = 1020494592. Its totient is φ = 973751736.

The previous prime is 997077199. The next prime is 997077239. The reversal of 997077223 is 322770799.

It is a happy number.

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 997077223 - 2⁹ = 997076711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997047223) 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, 765 + ... + 44662.

It is an arithmetic number, because the mean of its divisors is an integer number (127561824).

Almost surely, 2^997077223 is an apocalyptic number.

997077223 is a deficient number, since it is larger than the sum of its proper divisors (23417369).

997077223 is a wasteful number, since it uses less digits than its factorization.

997077223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45941.

The product of its (nonzero) digits is 333396, while the sum is 46.

The square root of 997077223 is about 31576.5296224902. The cubic root of 997077223 is about 999.0247902751.

The spelling of 997077223 in words is "nine hundred ninety-seven million, seventy-seven thousand, two hundred twenty-three".