73978046 has 8 divisors (see below), whose sum is σ = 112214160. Its totient is φ = 36573328.

The previous prime is 73978019. The next prime is 73978057. The reversal of 73978046 is 64087937.

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 = 73977988 and 73978006.

It is a congruent number.

It is an unprimeable number.

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, 207626 + ... + 207981.

It is an arithmetic number, because the mean of its divisors is an integer number (14026770).

Almost surely, 2^73978046 is an apocalyptic number.

73978046 is a deficient number, since it is larger than the sum of its proper divisors (38236114).

73978046 is a wasteful number, since it uses less digits than its factorization.

73978046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415698.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 73978046 is about 8601.0491220548. The cubic root of 73978046 is about 419.7921231309.

The spelling of 73978046 in words is "seventy-three million, nine hundred seventy-eight thousand, forty-six".