261794 has 8 divisors (see below), whose sum is σ = 422940. Its totient is φ = 120816.

The previous prime is 261791. The next prime is 261799. The reversal of 261794 is 497162.

It can be written as a sum of positive squares in 2 ways, for example, as 235225 + 26569 = 485^2 + 163^2 .

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

It is an Ulam number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (261791) 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, 5009 + ... + 5060.

2²⁶¹⁷⁹⁴ is an apocalyptic number.

261794 is a deficient number, since it is larger than the sum of its proper divisors (161146).

261794 is a wasteful number, since it uses less digits than its factorization.

261794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10084.

The product of its digits is 3024, while the sum is 29.

The square root of 261794 is about 511.6580889618. The cubic root of 261794 is about 63.9715042413.

The spelling of 261794 in words is "two hundred sixty-one thousand, seven hundred ninety-four".