997796523 has 8 divisors (see below), whose sum is σ = 1333557136. Its totient is φ = 663616800.

The previous prime is 997796461. The next prime is 997796537. The reversal of 997796523 is 325697799.

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

It is not a de Polignac number, because 997796523 - 2¹³ = 997788331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (997796563) 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, 393748 + ... + 396273.

It is an arithmetic number, because the mean of its divisors is an integer number (166694642).

Almost surely, 2^997796523 is an apocalyptic number.

997796523 is a deficient number, since it is larger than the sum of its proper divisors (335760613).

997796523 is a wasteful number, since it uses less digits than its factorization.

997796523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790445.

The product of its digits is 6429780, while the sum is 57.

The square root of 997796523 is about 31587.9173577493. The cubic root of 997796523 is about 999.2649675263.

The spelling of 997796523 in words is "nine hundred ninety-seven million, seven hundred ninety-six thousand, five hundred twenty-three".