74973646 has 8 divisors (see below), whose sum is σ = 122684184. Its totient is φ = 34078920.

The previous prime is 74973637. The next prime is 74973653. The reversal of 74973646 is 64637947.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 74973596 and 74973605.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1703925 + ... + 1703968.

It is an arithmetic number, because the mean of its divisors is an integer number (15335523).

Almost surely, 2^74973646 is an apocalyptic number.

74973646 is a deficient number, since it is larger than the sum of its proper divisors (47710538).

74973646 is a wasteful number, since it uses less digits than its factorization.

74973646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407906.

The product of its digits is 762048, while the sum is 46.

The square root of 74973646 is about 8658.7323552585. The cubic root of 74973646 is about 421.6669316987. Note that the first 3 decimals are identical.

The spelling of 74973646 in words is "seventy-four million, nine hundred seventy-three thousand, six hundred forty-six".