689000690 has 32 divisors (see below), whose sum is σ = 1421072640. Its totient is φ = 235612224.

The previous prime is 689000651. The next prime is 689000693. The reversal of 689000690 is 96000986.

It is a super-2 number, since 2×689000690² = 949443901640952200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (689000693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14579 + ... + 39881.

It is an arithmetic number, because the mean of its divisors is an integer number (44408520).

Almost surely, 2^689000690 is an apocalyptic number.

689000690 is an abundant number, since it is smaller than the sum of its proper divisors (732071950).

689000690 is a wasteful number, since it uses less digits than its factorization.

689000690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25706.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 689000690 is about 26248.8226402633. The cubic root of 689000690 is about 883.2287939258.

The spelling of 689000690 in words is "six hundred eighty-nine million, six hundred ninety", and thus it is an aban number.