60721583 has 4 divisors (see below), whose sum is σ = 65392488. Its totient is φ = 56050680.

The previous prime is 60721579. The next prime is 60721589. The reversal of 60721583 is 38512706.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38512706 = 2 ⋅19256353.

It is a cyclic number.

It is not a de Polignac number, because 60721583 - 2² = 60721579 is a prime.

It is a super-2 number, since 2×60721583² = 7374221284051778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60721589) 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, 2335433 + ... + 2335458.

It is an arithmetic number, because the mean of its divisors is an integer number (16348122).

Almost surely, 2^60721583 is an apocalyptic number.

60721583 is a deficient number, since it is larger than the sum of its proper divisors (4670905).

60721583 is a wasteful number, since it uses less digits than its factorization.

60721583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4670904.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 60721583 is about 7792.4054694298. The cubic root of 60721583 is about 393.0499044207.

The spelling of 60721583 in words is "sixty million, seven hundred twenty-one thousand, five hundred eighty-three".