997079142 has 16 divisors (see below), whose sum is σ = 2031784560. Its totient is φ = 326088672.

The previous prime is 997079119. The next prime is 997079143. The reversal of 997079142 is 241970799.

It is a happy number.

It is a super-2 number, since 2×997079142² = 1988333630822912328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 997079091 and 997079100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997079143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1567417 + ... + 1568052.

It is an arithmetic number, because the mean of its divisors is an integer number (126986535).

Almost surely, 2^997079142 is an apocalyptic number.

997079142 is an abundant number, since it is smaller than the sum of its proper divisors (1034705418).

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

997079142 is a wasteful number, since it uses less digits than its factorization.

997079142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3135527.

The product of its (nonzero) digits is 285768, while the sum is 48.

The square root of 997079142 is about 31576.5600089687. The cubic root of 997079142 is about 999.0254311908.

The spelling of 997079142 in words is "nine hundred ninety-seven million, seventy-nine thousand, one hundred forty-two".