445777213 has 8 divisors (see below), whose sum is σ = 539428032. Its totient is φ = 359618496.

The previous prime is 445777181. The next prime is 445777219. The reversal of 445777213 is 312777544.

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 445777213 - 2⁵ = 445777181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445777219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1872895 + ... + 1873132.

It is an arithmetic number, because the mean of its divisors is an integer number (67428504).

Almost surely, 2^445777213 is an apocalyptic number.

It is an amenable number.

445777213 is a deficient number, since it is larger than the sum of its proper divisors (93650819).

445777213 is a wasteful number, since it uses less digits than its factorization.

445777213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3746051.

The product of its digits is 164640, while the sum is 40.

The square root of 445777213 is about 21113.4367879794. The cubic root of 445777213 is about 763.9048867140.

The spelling of 445777213 in words is "four hundred forty-five million, seven hundred seventy-seven thousand, two hundred thirteen".