997069456 has 20 divisors (see below), whose sum is σ = 1936423804. Its totient is φ = 497347200.

The previous prime is 997069439. The next prime is 997069457. The reversal of 997069456 is 654960799.

It can be written as a sum of positive squares in 2 ways, for example, as 312723856 + 684345600 = 17684^2 + 26160^2 .

It is a junction number, because it is equal to n+sod(n) for n = 997069397 and 997069406.

It is not an unprimeable number, because it can be changed into a prime (997069457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67275 + ... + 80746.

Almost surely, 2^997069456 is an apocalyptic number.

It is an amenable number.

997069456 is a deficient number, since it is larger than the sum of its proper divisors (939354348).

997069456 is a wasteful number, since it uses less digits than its factorization.

997069456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148450 (or 148444 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 55.

The square root of 997069456 is about 31576.4066353346. The cubic root of 997069456 is about 999.0221962114.

The spelling of 997069456 in words is "nine hundred ninety-seven million, sixty-nine thousand, four hundred fifty-six".