997919295 has 64 divisors (see below), whose sum is σ = 1788272640. Its totient is φ = 472780800.

The previous prime is 997919281. The next prime is 997919297. The reversal of 997919295 is 592919799.

It is not a de Polignac number, because 997919295 - 2¹¹ = 997917247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997919297) by changing a digit.

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 in 63 ways as a sum of consecutive naturals, for example, 322566 + ... + 325644.

It is an arithmetic number, because the mean of its divisors is an integer number (27941760).

Almost surely, 2^997919295 is an apocalyptic number.

997919295 is a deficient number, since it is larger than the sum of its proper divisors (790353345).

997919295 is a wasteful number, since it uses less digits than its factorization.

997919295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176.

The product of its digits is 4133430, while the sum is 60.

The square root of 997919295 is about 31589.8606359699. The cubic root of 997919295 is about 999.3059500728.

The spelling of 997919295 in words is "nine hundred ninety-seven million, nine hundred nineteen thousand, two hundred ninety-five".