74476451 has 4 divisors (see below), whose sum is σ = 85115952. Its totient is φ = 63836952.

The previous prime is 74476403. The next prime is 74476453. The reversal of 74476451 is 15467447.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15467447 = 3779 ⋅4093.

It is a cyclic number.

It is not a de Polignac number, because 74476451 - 2²⁶ = 7367587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74476453) 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 3 ways as a sum of consecutive naturals, for example, 5319740 + ... + 5319753.

It is an arithmetic number, because the mean of its divisors is an integer number (21278988).

Almost surely, 2^74476451 is an apocalyptic number.

74476451 is a deficient number, since it is larger than the sum of its proper divisors (10639501).

74476451 is a wasteful number, since it uses less digits than its factorization.

74476451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10639500.

The product of its digits is 94080, while the sum is 38.

The square root of 74476451 is about 8629.9739860558. The cubic root of 74476451 is about 420.7327552427.

The spelling of 74476451 in words is "seventy-four million, four hundred seventy-six thousand, four hundred fifty-one".