1000207764 has 30 divisors (see below), whose sum is σ = 2614741514. Its totient is φ = 333402480.

The previous prime is 1000207729. The next prime is 1000207783. The reversal of 1000207764 is 4677020001.

It can be written as a sum of positive squares in only one way, i.e., 734843664 + 265364100 = 27108^2 + 16290^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1543207 + ... + 1543854.

Almost surely, 2^1000207764 is an apocalyptic number.

It is an amenable number.

1000207764 is an abundant number, since it is smaller than the sum of its proper divisors (1614533750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000207764 is a wasteful number, since it uses less digits than its factorization.

1000207764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3087077 (or 3087066 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 1000207764 is about 31626.0614683523. The cubic root of 1000207764 is about 1000.0692498710.

Adding to 1000207764 its reverse (4677020001), we get a palindrome (5677227765).

The spelling of 1000207764 in words is "one billion, two hundred seven thousand, seven hundred sixty-four".