60702721 has 4 divisors (see below), whose sum is σ = 60722244. Its totient is φ = 60683200.

The previous prime is 60702689. The next prime is 60702757. The reversal of 60702721 is 12720706.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53217025 + 7485696 = 7295^2 + 2736^2 .

It is a cyclic number.

It is not a de Polignac number, because 60702721 - 2⁵ = 60702689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60702781) 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, 3940 + ... + 11701.

It is an arithmetic number, because the mean of its divisors is an integer number (15180561).

It is a Proth number, since it is equal to 3705 ⋅ 2¹⁴ + 1 and 3705 < 2¹⁴.

Almost surely, 2^60702721 is an apocalyptic number.

It is an amenable number.

60702721 is a deficient number, since it is larger than the sum of its proper divisors (19523).

60702721 is a wasteful number, since it uses less digits than its factorization.

60702721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19522.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 60702721 is about 7791.1950944640. The cubic root of 60702721 is about 393.0092023908.

The spelling of 60702721 in words is "sixty million, seven hundred two thousand, seven hundred twenty-one".