73720716 has 12 divisors (see below), whose sum is σ = 172015032. Its totient is φ = 24573568.

The previous prime is 73720637. The next prime is 73720723. The reversal of 73720716 is 61702737.

It is a tau number, because it is divible by the number of its divisors (12).

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, 3071685 + ... + 3071708.

It is an arithmetic number, because the mean of its divisors is an integer number (14334586).

Almost surely, 2^73720716 is an apocalyptic number.

It is an amenable number.

73720716 is an abundant number, since it is smaller than the sum of its proper divisors (98294316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73720716 is a wasteful number, since it uses less digits than its factorization.

73720716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6143400 (or 6143398 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 33.

The square root of 73720716 is about 8586.0768689781. The cubic root of 73720716 is about 419.3048136774.

The spelling of 73720716 in words is "seventy-three million, seven hundred twenty thousand, seven hundred sixteen".