1047505688 has 8 divisors (see below), whose sum is σ = 1964073180. Its totient is φ = 523752840.

The previous prime is 1047505681. The next prime is 1047505709. The reversal of 1047505688 is 8865057401.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047505681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65469098 + ... + 65469113.

Almost surely, 2^1047505688 is an apocalyptic number.

It is an amenable number.

1047505688 is a deficient number, since it is larger than the sum of its proper divisors (916567492).

1047505688 is a wasteful number, since it uses less digits than its factorization.

1047505688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130938217 (or 130938213 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 1047505688 is about 32365.1925376631. The cubic root of 1047505688 is about 1015.5908902192.

The spelling of 1047505688 in words is "one billion, forty-seven million, five hundred five thousand, six hundred eighty-eight".