997309022 has 4 divisors (see below), whose sum is σ = 1495963536. Its totient is φ = 498654510.

The previous prime is 997309007. The next prime is 997309039. The reversal of 997309022 is 220903799.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249327254 + ... + 249327257.

It is an arithmetic number, because the mean of its divisors is an integer number (373990884).

Almost surely, 2^997309022 is an apocalyptic number.

997309022 is a deficient number, since it is larger than the sum of its proper divisors (498654514).

997309022 is a wasteful number, since it uses less digits than its factorization.

997309022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498654513.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 997309022 is about 31580.1998410396. The cubic root of 997309022 is about 999.1022015325.

The spelling of 997309022 in words is "nine hundred ninety-seven million, three hundred nine thousand, twenty-two".