60993421 has 2 divisors, whose sum is σ = 60993422. Its totient is φ = 60993420.

The previous prime is 60993419. The next prime is 60993431. The reversal of 60993421 is 12439906.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60668521 + 324900 = 7789^2 + 570^2 .

It is a cyclic number.

It is not a de Polignac number, because 60993421 - 2¹ = 60993419 is a prime.

Together with 60993419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60993431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30496710 + 30496711.

It is an arithmetic number, because the mean of its divisors is an integer number (30496711).

Almost surely, 2^60993421 is an apocalyptic number.

It is an amenable number.

60993421 is a deficient number, since it is larger than the sum of its proper divisors (1).

60993421 is an equidigital number, since it uses as much as digits as its factorization.

60993421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 60993421 is about 7809.8284872333. The cubic root of 60993421 is about 393.6355657714.

The spelling of 60993421 in words is "sixty million, nine hundred ninety-three thousand, four hundred twenty-one".