1006862728 has 8 divisors (see below), whose sum is σ = 1887867630. Its totient is φ = 503431360.

The previous prime is 1006862713. The next prime is 1006862729. The reversal of 1006862728 is 8272686001.

It can be written as a sum of positive squares in only one way, i.e., 938932164 + 67930564 = 30642^2 + 8242^2 .

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 (1006862729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62928913 + ... + 62928928.

Almost surely, 2^1006862728 is an apocalyptic number.

It is an amenable number.

1006862728 is a deficient number, since it is larger than the sum of its proper divisors (881004902).

1006862728 is a wasteful number, since it uses less digits than its factorization.

1006862728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125857847 (or 125857843 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 1006862728 is about 31731.1003275966. The cubic root of 1006862728 is about 1002.2823628567.

The spelling of 1006862728 in words is "one billion, six million, eight hundred sixty-two thousand, seven hundred twenty-eight".