946381 has 6 divisors (see below), whose sum is σ = 989870. Its totient is φ = 904728.

The previous prime is 946369. The next prime is 946391. The reversal of 946381 is 183649.

It can be written as a sum of positive squares in only one way, i.e., 933156 + 13225 = 966^2 + 115^2 .

It is a de Polignac number, because none of the positive numbers 2^k-946381 is a prime.

It is a super-2 number, since 2×946381² = 1791273994322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (946331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 366 + ... + 1423.

2⁹⁴⁶³⁸¹ is an apocalyptic number.

It is an amenable number.

946381 is a deficient number, since it is larger than the sum of its proper divisors (43489).

946381 is a wasteful number, since it uses less digits than its factorization.

946381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835 (or 1812 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 946381 is about 972.8211551976. The cubic root of 946381 is about 98.1797686056.

The spelling of 946381 in words is "nine hundred forty-six thousand, three hundred eighty-one".