3894445 has 8 divisors (see below), whose sum is σ = 4948344. Its totient is φ = 2932224.

The previous prime is 3894433. The next prime is 3894469. The reversal of 3894445 is 5444983.

It can be written as a sum of positive squares in 4 ways, for example, as 1590121 + 2304324 = 1261^2 + 1518^2 .

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 3894445 - 2⁹ = 3893933 is a prime.

It is a d-powerful number, because it can be written as 3¹³ + 8⁷ + 9⁵ + 4 + 4⁴ + 4⁸ + 5⁷ .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22824 + ... + 22993.

It is an arithmetic number, because the mean of its divisors is an integer number (618543).

Almost surely, 2^3894445 is an apocalyptic number.

It is an amenable number.

3894445 is a deficient number, since it is larger than the sum of its proper divisors (1053899).

3894445 is a wasteful number, since it uses less digits than its factorization.

3894445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45839.

The product of its digits is 69120, while the sum is 37.

The square root of 3894445 is about 1973.4348228406. The cubic root of 3894445 is about 157.3313218925.

The spelling of 3894445 in words is "three million, eight hundred ninety-four thousand, four hundred forty-five".