690612012 has 36 divisors (see below), whose sum is σ = 1848404376. Its totient is φ = 216662400.

The previous prime is 690612011. The next prime is 690612059. The reversal of 690612012 is 210216096.

690612012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×690612012² = 953889902237376288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (690612011) 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, 563614 + ... + 564837.

It is an arithmetic number, because the mean of its divisors is an integer number (51344566).

Almost surely, 2^690612012 is an apocalyptic number.

It is an amenable number.

690612012 is an abundant number, since it is smaller than the sum of its proper divisors (1157792364).

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

690612012 is a wasteful number, since it uses less digits than its factorization.

690612012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128478 (or 1128473 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 690612012 is about 26279.4979404097. The cubic root of 690612012 is about 883.9167748543.

The spelling of 690612012 in words is "six hundred ninety million, six hundred twelve thousand, twelve".