60721307 has 2 divisors, whose sum is σ = 60721308. Its totient is φ = 60721306.

The previous prime is 60721303. The next prime is 60721319. The reversal of 60721307 is 70312706.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 60721307 - 2² = 60721303 is a prime.

It is not a weakly prime, because it can be changed into another prime (60721303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30360653 + 30360654.

It is an arithmetic number, because the mean of its divisors is an integer number (30360654).

Almost surely, 2^60721307 is an apocalyptic number.

60721307 is a deficient number, since it is larger than the sum of its proper divisors (1).

60721307 is an equidigital number, since it uses as much as digits as its factorization.

60721307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 60721307 is about 7792.3877598590. The cubic root of 60721307 is about 393.0493089052.

The spelling of 60721307 in words is "sixty million, seven hundred twenty-one thousand, three hundred seven".