73921642 has 8 divisors (see below), whose sum is σ = 111371616. Its totient is φ = 36797772.

The previous prime is 73921637. The next prime is 73921657. The reversal of 73921642 is 24612937.

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 = 73921598 and 73921607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80958 + ... + 81865.

It is an arithmetic number, because the mean of its divisors is an integer number (13921452).

Almost surely, 2^73921642 is an apocalyptic number.

73921642 is a deficient number, since it is larger than the sum of its proper divisors (37449974).

73921642 is a wasteful number, since it uses less digits than its factorization.

73921642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163052.

The product of its digits is 18144, while the sum is 34.

The square root of 73921642 is about 8597.7695944937. The cubic root of 73921642 is about 419.6854068980.

The spelling of 73921642 in words is "seventy-three million, nine hundred twenty-one thousand, six hundred forty-two".