3894357 has 4 divisors (see below), whose sum is σ = 5192480. Its totient is φ = 2596236.

The previous prime is 3894353. The next prime is 3894391. The reversal of 3894357 is 7534983.

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 3894357 - 2² = 3894353 is a prime.

It is a super-5 number, since 5×3894357⁵ (a number of 34 digits) contains 55555 as substring.

It is a d-powerful number, because it can be written as 3⁹ + 8⁷ + 9 + 4⁸ + 3¹³ + 5 + 7⁶ .

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3894353) 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 3 ways as a sum of consecutive naturals, for example, 649057 + ... + 649062.

It is an arithmetic number, because the mean of its divisors is an integer number (1298120).

Almost surely, 2^3894357 is an apocalyptic number.

It is an amenable number.

3894357 is a deficient number, since it is larger than the sum of its proper divisors (1298123).

3894357 is a wasteful number, since it uses less digits than its factorization.

3894357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298122.

The product of its digits is 90720, while the sum is 39.

The square root of 3894357 is about 1973.4125265641. The cubic root of 3894357 is about 157.3301368489.

It can be divided in two parts, 38 and 94357, that added together give a triangular number (94395 = T₄₃₄).

The spelling of 3894357 in words is "three million, eight hundred ninety-four thousand, three hundred fifty-seven".