691922112 has 56 divisors (see below), whose sum is σ = 2092244736. Its totient is φ = 197691648.

The previous prime is 691922111. The next prime is 691922131. The reversal of 691922112 is 211229196.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (691922111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256068 + ... + 258755.

Almost surely, 2^691922112 is an apocalyptic number.

It is an amenable number.

691922112 is an abundant number, since it is smaller than the sum of its proper divisors (1400322624).

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

691922112 is a wasteful number, since it uses less digits than its factorization.

691922112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514845 (or 514835 counting only the distinct ones).

The product of its digits is 3888, while the sum is 33.

The square root of 691922112 is about 26304.4124055262. The cubic root of 691922112 is about 884.4753556774.

The spelling of 691922112 in words is "six hundred ninety-one million, nine hundred twenty-two thousand, one hundred twelve".