651696 has 20 divisors (see below), whose sum is σ = 1683672. Its totient is φ = 217216.

The previous prime is 651689. The next prime is 651697. The reversal of 651696 is 696156.

651696 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 651696.

It is not an unprimeable number, because it can be changed into a prime (651697) by changing a digit.

651696 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6741 + ... + 6836.

2⁶⁵¹⁶⁹⁶ is an apocalyptic number.

It is an amenable number.

651696 is an abundant number, since it is smaller than the sum of its proper divisors (1031976).

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

651696 is a wasteful number, since it uses less digits than its factorization.

651696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13588 (or 13582 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 651696 is about 807.2769041661. The cubic root of 651696 is about 86.6991856928.

The spelling of 651696 in words is "six hundred fifty-one thousand, six hundred ninety-six".