61804 has 6 divisors (see below), whose sum is σ = 108164. Its totient is φ = 30900.

The previous prime is 61781. The next prime is 61813. The reversal of 61804 is 40816.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7722 + ... + 7729.

2⁶¹⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

61804 is a deficient number, since it is larger than the sum of its proper divisors (46360).

61804 is a wasteful number, since it uses less digits than its factorization.

61804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15455 (or 15453 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 61804 is about 248.6041029428. The cubic root of 61804 is about 39.5371652555.

The spelling of 61804 in words is "sixty-one thousand, eight hundred four".