690430 has 32 divisors (see below), whose sum is σ = 1378944. Its totient is φ = 247296.

The previous prime is 690427. The next prime is 690433. The reversal of 690430 is 34096.

It is an interprime number because it is at equal distance from previous prime (690427) and next prime (690433).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6054 + ... + 6166.

It is an arithmetic number, because the mean of its divisors is an integer number (43092).

2⁶⁹⁰⁴³⁰ is an apocalyptic number.

690430 is a deficient number, since it is larger than the sum of its proper divisors (688514).

690430 is a wasteful number, since it uses less digits than its factorization.

690430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 690430 is about 830.9211755636. The cubic root of 690430 is about 88.3839115429.

The spelling of 690430 in words is "six hundred ninety thousand, four hundred thirty".