107821432 has 16 divisors (see below), whose sum is σ = 202293000. Its totient is φ = 53876640.

The previous prime is 107821421. The next prime is 107821433. The reversal of 107821432 is 234128701.

It is a super-2 number, since 2×107821432² = 23250922397061248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 107821432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107821433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13582 + ... + 20002.

Almost surely, 2^107821432 is an apocalyptic number.

It is an amenable number.

107821432 is a deficient number, since it is larger than the sum of its proper divisors (94471568).

107821432 is a wasteful number, since it uses less digits than its factorization.

107821432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8526 (or 8522 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 107821432 is about 10383.7099343154. The cubic root of 107821432 is about 475.9577087394.

It can be divided in two parts, 1078214 and 32, that added together give a triangular number (1078246 = T₁₄₆₈).

The spelling of 107821432 in words is "one hundred seven million, eight hundred twenty-one thousand, four hundred thirty-two".