60721331 has 16 divisors (see below), whose sum is σ = 72563040. Its totient is φ = 50158080.

The previous prime is 60721319. The next prime is 60721333. The reversal of 60721331 is 13312706.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 60721331 - 2¹⁴ = 60704947 is a prime.

It is a super-2 number, since 2×60721331² = 7374160076823122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 60721297 and 60721306.

It is not an unprimeable number, because it can be changed into a prime (60721333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176 + ... + 11021.

It is an arithmetic number, because the mean of its divisors is an integer number (4535190).

Almost surely, 2^60721331 is an apocalyptic number.

60721331 is a deficient number, since it is larger than the sum of its proper divisors (11841709).

60721331 is a wasteful number, since it uses less digits than its factorization.

60721331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11254.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 60721331 is about 7792.3892998233. The cubic root of 60721331 is about 393.0493606892.

The spelling of 60721331 in words is "sixty million, seven hundred twenty-one thousand, three hundred thirty-one".