690046 has 16 divisors (see below), whose sum is σ = 1234944. Its totient is φ = 282744.

The previous prime is 690037. The next prime is 690059. The reversal of 690046 is 640096.

690046 = 64² + 65² + ... + 132².

It is a self number, because there is not a number n which added to its sum of digits gives 690046.

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, 750 + ... + 1393.

It is an arithmetic number, because the mean of its divisors is an integer number (77184).

2⁶⁹⁰⁰⁴⁶ is an apocalyptic number.

690046 is a deficient number, since it is larger than the sum of its proper divisors (544898).

690046 is a wasteful number, since it uses less digits than its factorization.

690046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 690046 is about 830.6900745766. The cubic root of 690046 is about 88.3675228595.

The spelling of 690046 in words is "six hundred ninety thousand, forty-six".