74859861 has 16 divisors (see below), whose sum is σ = 104315904. Its totient is φ = 47704944.

The previous prime is 74859859. The next prime is 74859881. The reversal of 74859861 is 16895847.

It is not a de Polignac number, because 74859861 - 2¹ = 74859859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74859861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74859881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111 + ... + 12236.

It is an arithmetic number, because the mean of its divisors is an integer number (6519744).

Almost surely, 2^74859861 is an apocalyptic number.

It is an amenable number.

74859861 is a deficient number, since it is larger than the sum of its proper divisors (29456043).

74859861 is a wasteful number, since it uses less digits than its factorization.

74859861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12440.

The product of its digits is 483840, while the sum is 48.

The square root of 74859861 is about 8652.1593258562. The cubic root of 74859861 is about 421.4535070839.

The spelling of 74859861 in words is "seventy-four million, eight hundred fifty-nine thousand, eight hundred sixty-one".