689653512 has 48 divisors (see below), whose sum is σ = 1895702640. Its totient is φ = 226451808.

The previous prime is 689653483. The next prime is 689653519. The reversal of 689653512 is 215356986.

689653512 is a `hidden beast` number, since 6 + 89 + 6 + 53 + 512 = 666.

It is a super-2 number, since 2×689653512² = 951243933227868288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (689653519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66658 + ... + 76305.

It is an arithmetic number, because the mean of its divisors is an integer number (39493805).

Almost surely, 2^689653512 is an apocalyptic number.

It is an amenable number.

689653512 is an abundant number, since it is smaller than the sum of its proper divisors (1206049128).

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

689653512 is a wasteful number, since it uses less digits than its factorization.

689653512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143042 (or 143035 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 689653512 is about 26261.2549585887. The cubic root of 689653512 is about 883.5076563357.

The spelling of 689653512 in words is "six hundred eighty-nine million, six hundred fifty-three thousand, five hundred twelve".