60857911 has 2 divisors, whose sum is σ = 60857912. Its totient is φ = 60857910.

The previous prime is 60857879. The next prime is 60857917. The reversal of 60857911 is 11975806.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 60857911 - 2⁵ = 60857879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60857917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30428955 + 30428956.

It is an arithmetic number, because the mean of its divisors is an integer number (30428956).

Almost surely, 2^60857911 is an apocalyptic number.

60857911 is a deficient number, since it is larger than the sum of its proper divisors (1).

60857911 is an equidigital number, since it uses as much as digits as its factorization.

60857911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 60857911 is about 7801.1480565363. The cubic root of 60857911 is about 393.3438342659.

The spelling of 60857911 in words is "sixty million, eight hundred fifty-seven thousand, nine hundred eleven".