766009972 has 24 divisors (see below), whose sum is σ = 1649868416. Its totient is φ = 303036768.

The previous prime is 766009961. The next prime is 766009999. The reversal of 766009972 is 279900667.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051848 + ... + 1052575.

Almost surely, 2^766009972 is an apocalyptic number.

It is an amenable number.

766009972 is an abundant number, since it is smaller than the sum of its proper divisors (883858444).

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

766009972 is a wasteful number, since it uses less digits than its factorization.

766009972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104447 (or 2104445 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 766009972 is about 27676.8851571126. The cubic root of 766009972 is about 914.9797329959.

The spelling of 766009972 in words is "seven hundred sixty-six million, nine thousand, nine hundred seventy-two".