58422781 has 2 divisors, whose sum is σ = 58422782. Its totient is φ = 58422780.

The previous prime is 58422773. The next prime is 58422797. The reversal of 58422781 is 18722485.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57836025 + 586756 = 7605^2 + 766^2 .

It is a cyclic number.

It is not a de Polignac number, because 58422781 - 2³ = 58422773 is a prime.

It is a super-2 number, since 2×58422781² = 6826442679547922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 58422781.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (58422281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29211390 + 29211391.

It is an arithmetic number, because the mean of its divisors is an integer number (29211391).

Almost surely, 2^58422781 is an apocalyptic number.

It is an amenable number.

58422781 is a deficient number, since it is larger than the sum of its proper divisors (1).

58422781 is an equidigital number, since it uses as much as digits as its factorization.

58422781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35840, while the sum is 37.

The square root of 58422781 is about 7643.4796395359. The cubic root of 58422781 is about 388.0259242430.

The spelling of 58422781 in words is "fifty-eight million, four hundred twenty-two thousand, seven hundred eighty-one".