60421909 has 2 divisors, whose sum is σ = 60421910. Its totient is φ = 60421908.

The previous prime is 60421853. The next prime is 60421939. The reversal of 60421909 is 90912406.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37859409 + 22562500 = 6153^2 + 4750^2 .

It is a cyclic number.

It is not a de Polignac number, because 60421909 - 2¹⁵ = 60389141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60421939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30210954 + 30210955.

It is an arithmetic number, because the mean of its divisors is an integer number (30210955).

Almost surely, 2^60421909 is an apocalyptic number.

It is an amenable number.

60421909 is a deficient number, since it is larger than the sum of its proper divisors (1).

60421909 is an equidigital number, since it uses as much as digits as its factorization.

60421909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 60421909 is about 7773.1530925359. The cubic root of 60421909 is about 392.4022426834.

The spelling of 60421909 in words is "sixty million, four hundred twenty-one thousand, nine hundred nine".