107860921 has 4 divisors (see below), whose sum is σ = 123269632. Its totient is φ = 92452212.

The previous prime is 107860919. The next prime is 107860927. The reversal of 107860921 is 129068701.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 129068701 = 1657 ⋅77893.

It is a cyclic number.

It is not a de Polignac number, because 107860921 - 2¹ = 107860919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107860927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7704345 + ... + 7704358.

It is an arithmetic number, because the mean of its divisors is an integer number (30817408).

Almost surely, 2^107860921 is an apocalyptic number.

It is an amenable number.

107860921 is a deficient number, since it is larger than the sum of its proper divisors (15408711).

107860921 is an equidigital number, since it uses as much as digits as its factorization.

107860921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15408710.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 107860921 is about 10385.6112482607. The cubic root of 107860921 is about 476.0158072688.

The spelling of 107860921 in words is "one hundred seven million, eight hundred sixty thousand, nine hundred twenty-one".