394777101 has 4 divisors (see below), whose sum is σ = 526369472. Its totient is φ = 263184732.

The previous prime is 394777091. The next prime is 394777127. The reversal of 394777101 is 101777493.

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.

It is not a de Polignac number, because 394777101 - 2⁹ = 394776589 is a prime.

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 394777101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394777171) 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, 65796181 + ... + 65796186.

It is an arithmetic number, because the mean of its divisors is an integer number (131592368).

Almost surely, 2^394777101 is an apocalyptic number.

It is an amenable number.

394777101 is a deficient number, since it is larger than the sum of its proper divisors (131592371).

394777101 is a wasteful number, since it uses less digits than its factorization.

394777101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131592370.

The product of its (nonzero) digits is 37044, while the sum is 39.

The square root of 394777101 is about 19868.9984901102. The cubic root of 394777101 is about 733.5853524761.

The spelling of 394777101 in words is "three hundred ninety-four million, seven hundred seventy-seven thousand, one hundred one".