59716421 has 2 divisors, whose sum is σ = 59716422. Its totient is φ = 59716420.

The previous prime is 59716417. The next prime is 59716429. The reversal of 59716421 is 12461795.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53085796 + 6630625 = 7286^2 + 2575^2 .

It is a cyclic number.

It is not a de Polignac number, because 59716421 - 2² = 59716417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (59716429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29858210 + 29858211.

It is an arithmetic number, because the mean of its divisors is an integer number (29858211).

Almost surely, 2^59716421 is an apocalyptic number.

It is an amenable number.

59716421 is a deficient number, since it is larger than the sum of its proper divisors (1).

59716421 is an equidigital number, since it uses as much as digits as its factorization.

59716421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 35.

The square root of 59716421 is about 7727.6400666698. The cubic root of 59716421 is about 390.8690264116.

The spelling of 59716421 in words is "fifty-nine million, seven hundred sixteen thousand, four hundred twenty-one".