106077781 has 8 divisors (see below), whose sum is σ = 106988544. Its totient is φ = 105171360.

The previous prime is 106077761. The next prime is 106077787. The reversal of 106077781 is 187770601.

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

It is a cyclic number.

It is not a de Polignac number, because 106077781 - 2⁹ = 106077269 is a prime.

It is a super-2 number, since 2×106077781² = 22504991243767922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 106077781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106077787) 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, 62956 + ... + 64618.

It is an arithmetic number, because the mean of its divisors is an integer number (13373568).

Almost surely, 2^106077781 is an apocalyptic number.

It is an amenable number.

106077781 is a deficient number, since it is larger than the sum of its proper divisors (910763).

106077781 is a wasteful number, since it uses less digits than its factorization.

106077781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171.

The product of its (nonzero) digits is 16464, while the sum is 37.

The square root of 106077781 is about 10299.4068275799. The cubic root of 106077781 is about 473.3780781060.

The spelling of 106077781 in words is "one hundred six million, seventy-seven thousand, seven hundred eighty-one".