60231721 has 8 divisors (see below), whose sum is σ = 65811744. Its totient is φ = 54669120.

The previous prime is 60231713. The next prime is 60231737. The reversal of 60231721 is 12713206.

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

It is not a de Polignac number, because 60231721 - 2³ = 60231713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 60231692 and 60231701.

It is not an unprimeable number, because it can be changed into a prime (60231751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3505 + ... + 11521.

It is an arithmetic number, because the mean of its divisors is an integer number (8226468).

Almost surely, 2^60231721 is an apocalyptic number.

It is an amenable number.

60231721 is a deficient number, since it is larger than the sum of its proper divisors (5580023).

60231721 is a wasteful number, since it uses less digits than its factorization.

60231721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8711.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 60231721 is about 7760.9098049133. The cubic root of 60231721 is about 391.9900928532.

Adding to 60231721 its reverse (12713206), we get a palindrome (72944927).

It can be divided in two parts, 6023 and 1721, that added together give a square (7744 = 88²).

The spelling of 60231721 in words is "sixty million, two hundred thirty-one thousand, seven hundred twenty-one".