58791989 has 2 divisors, whose sum is σ = 58791990. Its totient is φ = 58791988.

The previous prime is 58791977. The next prime is 58792003. The reversal of 58791989 is 98919785.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44222500 + 14569489 = 6650^2 + 3817^2 .

It is a cyclic number.

It is not a de Polignac number, because 58791989 - 2¹² = 58787893 is a prime.

It is a super-2 number, since 2×58791989² = 6912995941152242, which contains 22 as substring.

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 (58791919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29395994 + 29395995.

It is an arithmetic number, because the mean of its divisors is an integer number (29395995).

Almost surely, 2^58791989 is an apocalyptic number.

It is an amenable number.

58791989 is a deficient number, since it is larger than the sum of its proper divisors (1).

58791989 is an equidigital number, since it uses as much as digits as its factorization.

58791989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 56.

The square root of 58791989 is about 7667.5934294927. The cubic root of 58791989 is about 388.8415966104.

The spelling of 58791989 in words is "fifty-eight million, seven hundred ninety-one thousand, nine hundred eighty-nine".