1288374897 has 16 divisors (see below), whose sum is σ = 1741076480. Its totient is φ = 847314000.

The previous prime is 1288374863. The next prime is 1288374929. The reversal of 1288374897 is 7984738821.

It is not a de Polignac number, because 1288374897 - 2⁸ = 1288374641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1288374847) 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, 503772 + ... + 506322.

It is an arithmetic number, because the mean of its divisors is an integer number (108817280).

Almost surely, 2^1288374897 is an apocalyptic number.

It is an amenable number.

1288374897 is a deficient number, since it is larger than the sum of its proper divisors (452701583).

1288374897 is a wasteful number, since it uses less digits than its factorization.

1288374897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4764.

The product of its digits is 5419008, while the sum is 57.

The square root of 1288374897 is about 35893.9395580925. The cubic root of 1288374897 is about 1088.1299182665.

The spelling of 1288374897 in words is "one billion, two hundred eighty-eight million, three hundred seventy-four thousand, eight hundred ninety-seven".