73648861 has 16 divisors (see below), whose sum is σ = 86829120. Its totient is φ = 61585920.

The previous prime is 73648831. The next prime is 73648889. The reversal of 73648861 is 16884637.

It is not a de Polignac number, because 73648861 - 2²¹ = 71551709 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 (73648801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49750 + ... + 51208.

It is an arithmetic number, because the mean of its divisors is an integer number (5426820).

Almost surely, 2^73648861 is an apocalyptic number.

It is an amenable number.

73648861 is a deficient number, since it is larger than the sum of its proper divisors (13180259).

73648861 is a wasteful number, since it uses less digits than its factorization.

73648861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836.

The product of its digits is 193536, while the sum is 43.

The square root of 73648861 is about 8581.8914581810. The cubic root of 73648861 is about 419.1685383616.

The spelling of 73648861 in words is "seventy-three million, six hundred forty-eight thousand, eight hundred sixty-one".