662690 has 16 divisors (see below), whose sum is σ = 1363392. Its totient is φ = 227184.

The previous prime is 662689. The next prime is 662693. The reversal of 662690 is 96266.

It is a happy number.

It is a super-2 number, since 2×662690² = 878316072200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (662693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4664 + ... + 4803.

It is an arithmetic number, because the mean of its divisors is an integer number (85212).

2⁶⁶²⁶⁹⁰ is an apocalyptic number.

662690 is an abundant number, since it is smaller than the sum of its proper divisors (700702).

It is a weird number, because it is abundant, but not a pseudoperfect number.

662690 is a wasteful number, since it uses less digits than its factorization.

662690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9481.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 662690 is about 814.0577375101. The cubic root of 662690 is about 87.1840030414.

The spelling of 662690 in words is "six hundred sixty-two thousand, six hundred ninety".