106780831 has 4 divisors (see below), whose sum is σ = 107027872. Its totient is φ = 106533792.

The previous prime is 106780787. The next prime is 106780837. The reversal of 106780831 is 138087601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106780831 is a prime.

It is a super-2 number, since 2×106780831² = 22804291738101122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106780837) 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, 122871 + ... + 123736.

It is an arithmetic number, because the mean of its divisors is an integer number (26756968).

Almost surely, 2^106780831 is an apocalyptic number.

106780831 is a deficient number, since it is larger than the sum of its proper divisors (247041).

106780831 is an equidigital number, since it uses as much as digits as its factorization.

106780831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247040.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 106780831 is about 10333.4810688364. The cubic root of 106780831 is about 474.4215762519.

The spelling of 106780831 in words is "one hundred six million, seven hundred eighty thousand, eight hundred thirty-one".