42897704 has 8 divisors (see below), whose sum is σ = 80433210. Its totient is φ = 21448848.

The previous prime is 42897683. The next prime is 42897721. The reversal of 42897704 is 40779824.

It can be written as a sum of positive squares in only one way, i.e., 37185604 + 5712100 = 6098^2 + 2390^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2681099 + ... + 2681114.

Almost surely, 2^42897704 is an apocalyptic number.

It is an amenable number.

42897704 is a deficient number, since it is larger than the sum of its proper divisors (37535506).

42897704 is a wasteful number, since it uses less digits than its factorization.

42897704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5362219 (or 5362215 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 42897704 is about 6549.6338828976. The cubic root of 42897704 is about 350.0617686901.

The spelling of 42897704 in words is "forty-two million, eight hundred ninety-seven thousand, seven hundred four".