59789921 has 2 divisors, whose sum is σ = 59789922. Its totient is φ = 59789920.

The previous prime is 59789893. The next prime is 59789923. The reversal of 59789921 is 12998795.

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., 56776225 + 3013696 = 7535^2 + 1736^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-59789921 is a prime.

Together with 59789923, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 59789921.

It is not a weakly prime, because it can be changed into another prime (59789923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29894960 + 29894961.

It is an arithmetic number, because the mean of its divisors is an integer number (29894961).

Almost surely, 2^59789921 is an apocalyptic number.

It is an amenable number.

59789921 is a deficient number, since it is larger than the sum of its proper divisors (1).

59789921 is an equidigital number, since it uses as much as digits as its factorization.

59789921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 50.

The square root of 59789921 is about 7732.3942605121. The cubic root of 59789921 is about 391.0293234419.

The spelling of 59789921 in words is "fifty-nine million, seven hundred eighty-nine thousand, nine hundred twenty-one".