997773734 has 8 divisors (see below), whose sum is σ = 1497836448. Its totient is φ = 498494920.

The previous prime is 997773701. The next prime is 997773737. The reversal of 997773734 is 437377799.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 997773734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997773737) 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 3 ways as a sum of consecutive naturals, for example, 192782 + ... + 197889.

It is an arithmetic number, because the mean of its divisors is an integer number (187229556).

Almost surely, 2^997773734 is an apocalyptic number.

997773734 is a deficient number, since it is larger than the sum of its proper divisors (500062714).

997773734 is a wasteful number, since it uses less digits than its factorization.

997773734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391950.

The product of its digits is 7001316, while the sum is 56.

The square root of 997773734 is about 31587.5566323196. The cubic root of 997773734 is about 999.2573599556.

The spelling of 997773734 in words is "nine hundred ninety-seven million, seven hundred seventy-three thousand, seven hundred thirty-four".