1288846047 has 16 divisors (see below), whose sum is σ = 1734485760. Its totient is φ = 851253312.

The previous prime is 1288846001. The next prime is 1288846063. The reversal of 1288846047 is 7406488821.

It is not a de Polignac number, because 1288846047 - 2⁶ = 1288845983 is a prime.

It is a super-2 number, since 2×1288846047² = 3322248265735052418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1288845987 and 1288846005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288846747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152704 + ... + 160922.

It is an arithmetic number, because the mean of its divisors is an integer number (108405360).

Almost surely, 2^1288846047 is an apocalyptic number.

1288846047 is a deficient number, since it is larger than the sum of its proper divisors (445639713).

1288846047 is a wasteful number, since it uses less digits than its factorization.

1288846047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8702.

The product of its (nonzero) digits is 688128, while the sum is 48.

The square root of 1288846047 is about 35900.5020438433. The cubic root of 1288846047 is about 1088.2625426891.

The spelling of 1288846047 in words is "one billion, two hundred eighty-eight million, eight hundred forty-six thousand, forty-seven".