60420881 has 2 divisors, whose sum is σ = 60420882. Its totient is φ = 60420880.

The previous prime is 60420851. The next prime is 60420883. The reversal of 60420881 is 18802406.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53217025 + 7203856 = 7295^2 + 2684^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60420881 is a prime.

It is a super-2 number, since 2×60420881² = 7301365721632322, which contains 22 as substring.

Together with 60420883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (60420883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30210440 + 30210441.

It is an arithmetic number, because the mean of its divisors is an integer number (30210441).

Almost surely, 2^60420881 is an apocalyptic number.

It is an amenable number.

60420881 is a deficient number, since it is larger than the sum of its proper divisors (1).

60420881 is an equidigital number, since it uses as much as digits as its factorization.

60420881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 60420881 is about 7773.0869672222. The cubic root of 60420881 is about 392.4000172666.

The spelling of 60420881 in words is "sixty million, four hundred twenty thousand, eight hundred eighty-one".