74836481 has 4 divisors (see below), whose sum is σ = 74958000. Its totient is φ = 74714964.

The previous prime is 74836471. The next prime is 74836523. The reversal of 74836481 is 18463847.

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 a de Polignac number, because none of the positive numbers 2^k-74836481 is a prime.

It is a super-2 number, since 2×74836481² = 11200997776926722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74836471) 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, 59831 + ... + 61068.

It is an arithmetic number, because the mean of its divisors is an integer number (18739500).

Almost surely, 2^74836481 is an apocalyptic number.

It is an amenable number.

74836481 is a deficient number, since it is larger than the sum of its proper divisors (121519).

74836481 is a wasteful number, since it uses less digits than its factorization.

74836481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121518.

The product of its digits is 129024, while the sum is 41.

The square root of 74836481 is about 8650.8081125407. The cubic root of 74836481 is about 421.4096268306.

The spelling of 74836481 in words is "seventy-four million, eight hundred thirty-six thousand, four hundred eighty-one".