661094 has 8 divisors (see below), whose sum is σ = 1133328. Its totient is φ = 283320.

The previous prime is 661093. The next prime is 661097. The reversal of 661094 is 490166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 661094.

It is not an unprimeable number, because it can be changed into a prime (661091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23597 + ... + 23624.

It is an arithmetic number, because the mean of its divisors is an integer number (141666).

2⁶⁶¹⁰⁹⁴ is an apocalyptic number.

661094 is a deficient number, since it is larger than the sum of its proper divisors (472234).

661094 is a wasteful number, since it uses less digits than its factorization.

661094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47230.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 661094 is about 813.0768721345. The cubic root of 661094 is about 87.1139564520.

The spelling of 661094 in words is "six hundred sixty-one thousand, ninety-four".