689290622 has 8 divisors (see below), whose sum is σ = 1039293696. Its totient is φ = 342859392.

The previous prime is 689290597. The next prime is 689290627. The reversal of 689290622 is 226092986.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689290627) 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, 892478 + ... + 893249.

It is an arithmetic number, because the mean of its divisors is an integer number (129911712).

Almost surely, 2^689290622 is an apocalyptic number.

689290622 is a deficient number, since it is larger than the sum of its proper divisors (350003074).

689290622 is a wasteful number, since it uses less digits than its factorization.

689290622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785922.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 689290622 is about 26254.3448213815. The cubic root of 689290622 is about 883.3526643291.

The spelling of 689290622 in words is "six hundred eighty-nine million, two hundred ninety thousand, six hundred twenty-two".