689376952 has 64 divisors (see below), whose sum is σ = 1454876640. Its totient is φ = 303513600.

The previous prime is 689376949. The next prime is 689376997. The reversal of 689376952 is 259673986.

It is a junction number, because it is equal to n+sod(n) for n = 689376893 and 689376902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 565848 + ... + 567064.

Almost surely, 2^689376952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689376952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727438320).

689376952 is an abundant number, since it is smaller than the sum of its proper divisors (765499688).

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

689376952 is a wasteful number, since it uses less digits than its factorization.

689376952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432 (or 1428 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 55.

The square root of 689376952 is about 26255.9888787301. The cubic root of 689376952 is about 883.3895412040.

It can be divided in two parts, 6893 and 76952, that added together give a triangular number (83845 = T₄₀₉).

The spelling of 689376952 in words is "six hundred eighty-nine million, three hundred seventy-six thousand, nine hundred fifty-two".