73947986 has 8 divisors (see below), whose sum is σ = 126768000. Its totient is φ = 31691988.

The previous prime is 73947983. The next prime is 73948001. The reversal of 73947986 is 68974937.

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

It is not an unprimeable number, because it can be changed into a prime (73947983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2640986 + ... + 2641013.

It is an arithmetic number, because the mean of its divisors is an integer number (15846000).

Almost surely, 2^73947986 is an apocalyptic number.

73947986 is a deficient number, since it is larger than the sum of its proper divisors (52820014).

73947986 is a wasteful number, since it uses less digits than its factorization.

73947986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5282008.

The product of its digits is 2286144, while the sum is 53.

The square root of 73947986 is about 8599.3014832601. The cubic root of 73947986 is about 419.7352564365.

The spelling of 73947986 in words is "seventy-three million, nine hundred forty-seven thousand, nine hundred eighty-six".