1025764 has 6 divisors (see below), whose sum is σ = 1795094. Its totient is φ = 512880.

The previous prime is 1025749. The next prime is 1025767. The reversal of 1025764 is 4675201.

It can be written as a sum of positive squares in only one way, i.e., 656100 + 369664 = 810^2 + 608^2 .

It is not an unprimeable number, because it can be changed into a prime (1025767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128217 + ... + 128224.

2^1025764 is an apocalyptic number.

It is an amenable number.

1025764 is a deficient number, since it is larger than the sum of its proper divisors (769330).

1025764 is a wasteful number, since it uses less digits than its factorization.

1025764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256445 (or 256443 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 1025764 is about 1012.8000789889. The cubic root of 1025764 is about 100.8515284122.

The spelling of 1025764 in words is "one million, twenty-five thousand, seven hundred sixty-four".