106790781 has 8 divisors (see below), whose sum is σ = 143412640. Its totient is φ = 70681392.

The previous prime is 106790759. The next prime is 106790791. The reversal of 106790781 is 187097601.

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

It is not a de Polignac number, because 106790781 - 2⁹ = 106790269 is a prime.

It is a super-2 number, since 2×106790781² = 22808541813179922, 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 (106790791) 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, 127630 + ... + 128463.

It is an arithmetic number, because the mean of its divisors is an integer number (17926580).

Almost surely, 2^106790781 is an apocalyptic number.

It is an amenable number.

106790781 is a deficient number, since it is larger than the sum of its proper divisors (36621859).

106790781 is a wasteful number, since it uses less digits than its factorization.

106790781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256235.

The product of its (nonzero) digits is 21168, while the sum is 39.

The square root of 106790781 is about 10333.9625023512. The cubic root of 106790781 is about 474.4363115686.

The spelling of 106790781 in words is "one hundred six million, seven hundred ninety thousand, seven hundred eighty-one".