690348 has 12 divisors (see below), whose sum is σ = 1610840. Its totient is φ = 230112.

The previous prime is 690341. The next prime is 690367. The reversal of 690348 is 843096.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×690348² = 953160722208, which contains 22 as substring.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (690341) by changing a digit.

690348 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, 28753 + ... + 28776.

2⁶⁹⁰³⁴⁸ is an apocalyptic number.

It is an amenable number.

690348 is an abundant number, since it is smaller than the sum of its proper divisors (920492).

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

690348 is a wasteful number, since it uses less digits than its factorization.

690348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57536 (or 57534 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 690348 is about 830.8718312712. The cubic root of 690348 is about 88.3804123865.

The spelling of 690348 in words is "six hundred ninety thousand, three hundred forty-eight".