690616 has 16 divisors (see below), whose sum is σ = 1305000. Its totient is φ = 342624.

The previous prime is 690611. The next prime is 690629. The reversal of 690616 is 616096.

It is a happy number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1135 + ... + 1633.

2⁶⁹⁰⁶¹⁶ is an apocalyptic number.

It is an amenable number.

690616 is a deficient number, since it is larger than the sum of its proper divisors (614384).

690616 is a wasteful number, since it uses less digits than its factorization.

690616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 690616 is about 831.0330920006. The cubic root of 690616 is about 88.3918476270.

The spelling of 690616 in words is "six hundred ninety thousand, six hundred sixteen".