73720715 has 8 divisors (see below), whose sum is σ = 88514640. Its totient is φ = 58943392.

The previous prime is 73720637. The next prime is 73720723. The reversal of 73720715 is 51702737.

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

It is a cyclic number.

It is not a de Polignac number, because 73720715 - 2⁸ = 73720459 is a prime.

It is a super-2 number, since 2×73720715² = 10869487640222450, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 10037 + ... + 15753.

It is an arithmetic number, because the mean of its divisors is an integer number (11064330).

Almost surely, 2^73720715 is an apocalyptic number.

73720715 is a deficient number, since it is larger than the sum of its proper divisors (14793925).

73720715 is a wasteful number, since it uses less digits than its factorization.

73720715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8301.

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 73720715 is about 8586.0768107442. The cubic root of 73720715 is about 419.3048117815.

The spelling of 73720715 in words is "seventy-three million, seven hundred twenty thousand, seven hundred fifteen".