61840623 has 8 divisors (see below), whose sum is σ = 88796848. Its totient is φ = 38055744.

The previous prime is 61840591. The next prime is 61840657. The reversal of 61840623 is 32604816.

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

It is not a de Polignac number, because 61840623 - 2⁵ = 61840591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61840223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792790 + ... + 792867.

It is an arithmetic number, because the mean of its divisors is an integer number (11099606).

Almost surely, 2^61840623 is an apocalyptic number.

61840623 is a deficient number, since it is larger than the sum of its proper divisors (26956225).

61840623 is a wasteful number, since it uses less digits than its factorization.

61840623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585673.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 61840623 is about 7863.8809121197. The cubic root of 61840623 is about 395.4497318431.

The spelling of 61840623 in words is "sixty-one million, eight hundred forty thousand, six hundred twenty-three".