997843074 has 16 divisors (see below), whose sum is σ = 2016261408. Its totient is φ = 329185152.

The previous prime is 997843069. The next prime is 997843087. The reversal of 997843074 is 470348799.

It is a happy number.

997843074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856672 + ... + 857835.

It is an arithmetic number, because the mean of its divisors is an integer number (126016338).

Almost surely, 2^997843074 is an apocalyptic number.

997843074 is an abundant number, since it is smaller than the sum of its proper divisors (1018418334).

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

997843074 is a wasteful number, since it uses less digits than its factorization.

997843074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714609.

The product of its (nonzero) digits is 1524096, while the sum is 51.

The square root of 997843074 is about 31588.6541973538. The cubic root of 997843074 is about 999.2805071208.

The spelling of 997843074 in words is "nine hundred ninety-seven million, eight hundred forty-three thousand, seventy-four".