662781006 has 48 divisors (see below), whose sum is σ = 1549224144. Its totient is φ = 204003072.

The previous prime is 662780959. The next prime is 662781011. The reversal of 662781006 is 600187266.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4216 + ... + 36651.

It is an arithmetic number, because the mean of its divisors is an integer number (32275503).

Almost surely, 2^662781006 is an apocalyptic number.

662781006 is an abundant number, since it is smaller than the sum of its proper divisors (886443138).

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

662781006 is a wasteful number, since it uses less digits than its factorization.

662781006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40945 (or 40942 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 662781006 is about 25744.5335168459. The cubic root of 662781006 is about 871.8799379841.

The spelling of 662781006 in words is "six hundred sixty-two million, seven hundred eighty-one thousand, six".