3946189557 has 8 divisors (see below), whose sum is σ = 5490350784. Its totient is φ = 2516410688.

The previous prime is 3946189537. The next prime is 3946189579. The reversal of 3946189557 is 7559816493.

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 3946189557 - 2¹² = 3946185461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3946189497 and 3946189506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3946189537) 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, 28595508 + ... + 28595645.

It is an arithmetic number, because the mean of its divisors is an integer number (686293848).

Almost surely, 2^3946189557 is an apocalyptic number.

It is an amenable number.

3946189557 is a deficient number, since it is larger than the sum of its proper divisors (1544161227).

3946189557 is a wasteful number, since it uses less digits than its factorization.

3946189557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57191179.

The product of its digits is 8164800, while the sum is 57.

The square root of 3946189557 is about 62818.7038787016. The cubic root of 3946189557 is about 1580.2506621752.

The spelling of 3946189557 in words is "three billion, nine hundred forty-six million, one hundred eighty-nine thousand, five hundred fifty-seven".