690413 has 4 divisors (see below), whose sum is σ = 695520. Its totient is φ = 685308.

The previous prime is 690407. The next prime is 690419. The reversal of 690413 is 314096.

690413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (690407) and next prime (690419).

It is a cyclic number.

It is not a de Polignac number, because 690413 - 2⁴ = 690397 is a prime.

It is a super-2 number, since 2×690413² = 953340221138, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690419) 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, 2345 + ... + 2622.

It is an arithmetic number, because the mean of its divisors is an integer number (173880).

2⁶⁹⁰⁴¹³ is an apocalyptic number.

It is an amenable number.

690413 is a deficient number, since it is larger than the sum of its proper divisors (5107).

690413 is a wasteful number, since it uses less digits than its factorization.

690413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 690413 is about 830.9109458901. The cubic root of 690413 is about 88.3831861308.

The spelling of 690413 in words is "six hundred ninety thousand, four hundred thirteen".