669719496 has 32 divisors (see below), whose sum is σ = 1713238560. Its totient is φ = 218047872.

The previous prime is 669719459. The next prime is 669719507. The reversal of 669719496 is 694917966.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323445 + ... + 325508.

It is an arithmetic number, because the mean of its divisors is an integer number (53538705).

Almost surely, 2^669719496 is an apocalyptic number.

It is an amenable number.

669719496 is an abundant number, since it is smaller than the sum of its proper divisors (1043519064).

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

669719496 is a wasteful number, since it uses less digits than its factorization.

669719496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649005 (or 649001 counting only the distinct ones).

The product of its digits is 4408992, while the sum is 57.

The square root of 669719496 is about 25878.9392363752. The cubic root of 669719496 is about 874.9118805409.

It can be divided in two parts, 66971 and 9496, that added together give a palindrome (76467).

The spelling of 669719496 in words is "six hundred sixty-nine million, seven hundred nineteen thousand, four hundred ninety-six".