1047997736 has 8 divisors (see below), whose sum is σ = 1964995770. Its totient is φ = 523998864.

The previous prime is 1047997733. The next prime is 1047997747. The reversal of 1047997736 is 6377997401.

It can be written as a sum of positive squares in only one way, i.e., 559322500 + 488675236 = 23650^2 + 22106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1047997736² = 2196598509322251392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1047997733) 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 as a sum of consecutive naturals, namely, 65499851 + ... + 65499866.

Almost surely, 2^1047997736 is an apocalyptic number.

It is an amenable number.

1047997736 is a deficient number, since it is larger than the sum of its proper divisors (916998034).

1047997736 is a wasteful number, since it uses less digits than its factorization.

1047997736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130999723 (or 130999719 counting only the distinct ones).

The product of its (nonzero) digits is 2000376, while the sum is 53.

The square root of 1047997736 is about 32372.7931448616. The cubic root of 1047997736 is about 1015.7498841822.

The spelling of 1047997736 in words is "one billion, forty-seven million, nine hundred ninety-seven thousand, seven hundred thirty-six".