997270782 has 16 divisors (see below), whose sum is σ = 1994869632. Its totient is φ = 332368920.

The previous prime is 997270733. The next prime is 997270787. The reversal of 997270782 is 287072799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997270787) 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, 45657 + ... + 63867.

It is an arithmetic number, because the mean of its divisors is an integer number (124679352).

Almost surely, 2^997270782 is an apocalyptic number.

997270782 is an abundant number, since it is smaller than the sum of its proper divisors (997598850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

997270782 is a wasteful number, since it uses less digits than its factorization.

997270782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27343.

The product of its (nonzero) digits is 889056, while the sum is 51.

The square root of 997270782 is about 31579.5943925821. The cubic root of 997270782 is about 999.0894317839.

The spelling of 997270782 in words is "nine hundred ninety-seven million, two hundred seventy thousand, seven hundred eighty-two".