689299632 has 480 divisors, whose sum is σ = 2542059520. Its totient is φ = 176359680.

The previous prime is 689299621. The next prime is 689299657. The reversal of 689299632 is 236992986.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16030203 + ... + 16030245.

Almost surely, 2^689299632 is an apocalyptic number.

689299632 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689299632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1271029760).

689299632 is an abundant number, since it is smaller than the sum of its proper divisors (1852759888).

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

689299632 is a wasteful number, since it uses less digits than its factorization.

689299632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 105 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 689299632 is about 26254.5164114672. The cubic root of 689299632 is about 883.3565132005.

The spelling of 689299632 in words is "six hundred eighty-nine million, two hundred ninety-nine thousand, six hundred thirty-two".