58421217 has 4 divisors (see below), whose sum is σ = 77894960. Its totient is φ = 38947476.

The previous prime is 58421201. The next prime is 58421227. The reversal of 58421217 is 71212485.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 58421217 - 2⁴ = 58421201 is a prime.

It is a super-2 number, since 2×58421217² = 6826077191522178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (58421227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9736867 + ... + 9736872.

It is an arithmetic number, because the mean of its divisors is an integer number (19473740).

Almost surely, 2^58421217 is an apocalyptic number.

It is an amenable number.

58421217 is a deficient number, since it is larger than the sum of its proper divisors (19473743).

58421217 is a wasteful number, since it uses less digits than its factorization.

58421217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19473742.

The product of its digits is 4480, while the sum is 30.

The square root of 58421217 is about 7643.3773294271. The cubic root of 58421217 is about 388.0224616784.

The spelling of 58421217 in words is "fifty-eight million, four hundred twenty-one thousand, two hundred seventeen".