991629112 has 16 divisors (see below), whose sum is σ = 1860251400. Its totient is φ = 495562080.

The previous prime is 991629083. The next prime is 991629131. The reversal of 991629112 is 211926199.

It is a super-4 number, since 4×991629112⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14314 + ... + 46777.

Almost surely, 2^991629112 is an apocalyptic number.

It is an amenable number.

991629112 is a deficient number, since it is larger than the sum of its proper divisors (868622288).

991629112 is a wasteful number, since it uses less digits than its factorization.

991629112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63126 (or 63122 counting only the distinct ones).

The product of its digits is 17496, while the sum is 40.

The square root of 991629112 is about 31490.1430927203. The cubic root of 991629112 is about 997.2018818373.

The spelling of 991629112 in words is "nine hundred ninety-one million, six hundred twenty-nine thousand, one hundred twelve".