73720479 has 8 divisors (see below), whose sum is σ = 112336000. Its totient is φ = 42125976.

The previous prime is 73720477. The next prime is 73720519. The reversal of 73720479 is 97402737.

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

It is not a de Polignac number, because 73720479 - 2¹ = 73720477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73720477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1755229 + ... + 1755270.

It is an arithmetic number, because the mean of its divisors is an integer number (14042000).

Almost surely, 2^73720479 is an apocalyptic number.

73720479 is a deficient number, since it is larger than the sum of its proper divisors (38615521).

73720479 is a wasteful number, since it uses less digits than its factorization.

73720479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3510509.

The product of its (nonzero) digits is 74088, while the sum is 39.

The square root of 73720479 is about 8586.0630675531. The cubic root of 73720479 is about 419.3043643449.

The spelling of 73720479 in words is "seventy-three million, seven hundred twenty thousand, four hundred seventy-nine".