100043977 has 8 divisors (see below), whose sum is σ = 111801312. Its totient is φ = 88730400.

The previous prime is 100043959. The next prime is 100043981. The reversal of 100043977 is 779340001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100043977 - 2⁷ = 100043849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100043947) 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, 110463 + ... + 111364.

It is an arithmetic number, because the mean of its divisors is an integer number (13975164).

Almost surely, 2^100043977 is an apocalyptic number.

It is an amenable number.

100043977 is a deficient number, since it is larger than the sum of its proper divisors (11757335).

100043977 is a wasteful number, since it uses less digits than its factorization.

100043977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221879.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 100043977 is about 10002.1986083061. The cubic root of 100043977 is about 464.2269144403.

Adding to 100043977 its reverse (779340001), we get a palindrome (879383978).

The spelling of 100043977 in words is "one hundred million, forty-three thousand, nine hundred seventy-seven".