61842321 has 12 divisors (see below), whose sum is σ = 94029520. Its totient is φ = 39058200.

The previous prime is 61842317. The next prime is 61842329. The reversal of 61842321 is 12324816.

61842321 is a `hidden beast` number, since 618 + 4 + 23 + 21 = 666.

It is not a de Polignac number, because 61842321 - 2² = 61842317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61842329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180655 + ... + 180996.

Almost surely, 2^61842321 is an apocalyptic number.

It is an amenable number.

61842321 is a deficient number, since it is larger than the sum of its proper divisors (32187199).

61842321 is a wasteful number, since it uses less digits than its factorization.

61842321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361676 (or 361673 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 61842321 is about 7863.9888733390. The cubic root of 61842321 is about 395.4533511873.

The spelling of 61842321 in words is "sixty-one million, eight hundred forty-two thousand, three hundred twenty-one".