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394661 = 2931439
BaseRepresentation
bin1100000010110100101
3202001101002
41200112211
5100112121
612243045
73232421
oct1402645
9661332
10394661
1124a573
12170485
1310a837
14a3b81
157be0b
hex605a5

394661 has 8 divisors (see below), whose sum is σ = 422400. Its totient is φ = 367920.

The previous prime is 394643. The next prime is 394673. The reversal of 394661 is 166493.

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 394661 - 210 = 393637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394601) 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, 680 + ... + 1118.

It is an arithmetic number, because the mean of its divisors is an integer number (52800).

2394661 is an apocalyptic number.

394661 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

394661 is a deficient number, since it is larger than the sum of its proper divisors (27739).

394661 is a wasteful number, since it uses less digits than its factorization.

394661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499.

The product of its digits is 3888, while the sum is 29.

The square root of 394661 is about 628.2205026899. The cubic root of 394661 is about 73.3513431432.

The spelling of 394661 in words is "three hundred ninety-four thousand, six hundred sixty-one".

Divisors: 1 29 31 439 899 12731 13609 394661