1283897704 has 8 divisors (see below), whose sum is σ = 2407308210. Its totient is φ = 641948848.

The previous prime is 1283897689. The next prime is 1283897707. The reversal of 1283897704 is 4077983821.

It can be written as a sum of positive squares in only one way, i.e., 1082541604 + 201356100 = 32902^2 + 14190^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1283897707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80243599 + ... + 80243614.

Almost surely, 2^1283897704 is an apocalyptic number.

It is an amenable number.

1283897704 is a deficient number, since it is larger than the sum of its proper divisors (1123410506).

1283897704 is a wasteful number, since it uses less digits than its factorization.

1283897704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160487219 (or 160487215 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 1283897704 is about 35831.5183044202. The cubic root of 1283897704 is about 1086.8680128410.

The spelling of 1283897704 in words is "one billion, two hundred eighty-three million, eight hundred ninety-seven thousand, seven hundred four".