74721475 has 24 divisors (see below), whose sum is σ = 95618880. Its totient is φ = 57888000.

The previous prime is 74721461. The next prime is 74721529. The reversal of 74721475 is 57412747.

It is not a de Polignac number, because 74721475 - 2¹¹ = 74719427 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 275590 + ... + 275860.

It is an arithmetic number, because the mean of its divisors is an integer number (3984120).

Almost surely, 2^74721475 is an apocalyptic number.

74721475 is a deficient number, since it is larger than the sum of its proper divisors (20897405).

74721475 is a wasteful number, since it uses less digits than its factorization.

74721475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591 (or 586 counting only the distinct ones).

The product of its digits is 54880, while the sum is 37.

The square root of 74721475 is about 8644.1584321436. The cubic root of 74721475 is about 421.1936471269.

It can be divided in two parts, 747 and 21475, that added together give a palindrome (22222).

The spelling of 74721475 in words is "seventy-four million, seven hundred twenty-one thousand, four hundred seventy-five".