601380721 has 8 divisors (see below), whose sum is σ = 626336064. Its totient is φ = 576883440.

The previous prime is 601380713. The next prime is 601380727. The reversal of 601380721 is 127083106.

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 601380721 - 2³ = 601380713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 601380721.

It is not an unprimeable number, because it can be changed into a prime (601380727) 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, 111835 + ... + 117088.

It is an arithmetic number, because the mean of its divisors is an integer number (78292008).

Almost surely, 2^601380721 is an apocalyptic number.

It is an amenable number.

601380721 is a deficient number, since it is larger than the sum of its proper divisors (24955343).

601380721 is a wasteful number, since it uses less digits than its factorization.

601380721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229031.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 601380721 is about 24523.0650816736. The cubic root of 601380721 is about 844.0791392178.

The spelling of 601380721 in words is "six hundred one million, three hundred eighty thousand, seven hundred twenty-one".