997622023 has 2 divisors, whose sum is σ = 997622024. Its totient is φ = 997622022.

The previous prime is 997621997. The next prime is 997622029. The reversal of 997622023 is 320226799.

997622023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 997622023 - 2¹⁷ = 997490951 is a prime.

It is a super-2 number, since 2×997622023² = 1990499401549225058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997622029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498811011 + 498811012.

It is an arithmetic number, because the mean of its divisors is an integer number (498811012).

Almost surely, 2^997622023 is an apocalyptic number.

997622023 is a deficient number, since it is larger than the sum of its proper divisors (1).

997622023 is an equidigital number, since it uses as much as digits as its factorization.

997622023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 997622023 is about 31585.1551048907. The cubic root of 997622023 is about 999.2067118603.

The spelling of 997622023 in words is "nine hundred ninety-seven million, six hundred twenty-two thousand, twenty-three".