73850561 has 4 divisors (see below), whose sum is σ = 74382000. Its totient is φ = 73319124.

The previous prime is 73850551. The next prime is 73850563. The reversal of 73850561 is 16505837.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73850561 - 2¹⁴ = 73834177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73850563) 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, 265511 + ... + 265788.

It is an arithmetic number, because the mean of its divisors is an integer number (18595500).

Almost surely, 2^73850561 is an apocalyptic number.

It is an amenable number.

73850561 is a deficient number, since it is larger than the sum of its proper divisors (531439).

73850561 is a wasteful number, since it uses less digits than its factorization.

73850561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531438.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 73850561 is about 8593.6349119566. The cubic root of 73850561 is about 419.5508444772.

The spelling of 73850561 in words is "seventy-three million, eight hundred fifty thousand, five hundred sixty-one".