1006403764 has 12 divisors (see below), whose sum is σ = 1776793284. Its totient is φ = 498748544.

The previous prime is 1006403759. The next prime is 1006403767. The reversal of 1006403764 is 4673046001.

It can be written as a sum of positive squares in 2 ways, for example, as 71267364 + 935136400 = 8442^2 + 30580^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006403767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1112827 + ... + 1113730.

It is an arithmetic number, because the mean of its divisors is an integer number (148066107).

Almost surely, 2^1006403764 is an apocalyptic number.

It is an amenable number.

1006403764 is a deficient number, since it is larger than the sum of its proper divisors (770389520).

1006403764 is a wasteful number, since it uses less digits than its factorization.

1006403764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226674 (or 2226672 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 1006403764 is about 31723.8674187117. The cubic root of 1006403764 is about 1002.1300476755.

Adding to 1006403764 its reverse (4673046001), we get a palindrome (5679449765).

The spelling of 1006403764 in words is "one billion, six million, four hundred three thousand, seven hundred sixty-four".