107621780 has 24 divisors (see below), whose sum is σ = 258292608. Its totient is φ = 36898848.

The previous prime is 107621771. The next prime is 107621797. The reversal of 107621780 is 87126701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384224 + ... + 384503.

It is an arithmetic number, because the mean of its divisors is an integer number (10762192).

Almost surely, 2^107621780 is an apocalyptic number.

107621780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

107621780 is an abundant number, since it is smaller than the sum of its proper divisors (150670828).

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

107621780 is a wasteful number, since it uses less digits than its factorization.

107621780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768743 (or 768741 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 107621780 is about 10374.0917674754. The cubic root of 107621780 is about 475.6637516538.

The spelling of 107621780 in words is "one hundred seven million, six hundred twenty-one thousand, seven hundred eighty".