689541948 has 36 divisors (see below), whose sum is σ = 1760275608. Its totient is φ = 227570400.

The previous prime is 689541907. The next prime is 689541967. The reversal of 689541948 is 849145986.

689541948 is a `hidden beast` number, since 6 + 8 + 9 + 541 + 94 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 689541894 and 689541903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91186 + ... + 98457.

Almost surely, 2^689541948 is an apocalyptic number.

It is an amenable number.

689541948 is an abundant number, since it is smaller than the sum of its proper divisors (1070733660).

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

689541948 is a wasteful number, since it uses less digits than its factorization.

689541948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189754 (or 189749 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 689541948 is about 26259.1307548441. The cubic root of 689541948 is about 883.4600126219.

The spelling of 689541948 in words is "six hundred eighty-nine million, five hundred forty-one thousand, nine hundred forty-eight".