58041721 has 4 divisors (see below), whose sum is σ = 58065232. Its totient is φ = 58018212.

The previous prime is 58041707. The next prime is 58041761. The reversal of 58041721 is 12714085.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12714085 = 5 ⋅2542817.

It is a cyclic number.

It is not a de Polignac number, because 58041721 - 2⁷ = 58041593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 58041721.

It is not an unprimeable number, because it can be changed into a prime (58041761) 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, 7551 + ... + 13156.

It is an arithmetic number, because the mean of its divisors is an integer number (14516308).

Almost surely, 2^58041721 is an apocalyptic number.

It is an amenable number.

58041721 is a deficient number, since it is larger than the sum of its proper divisors (23511).

58041721 is a wasteful number, since it uses less digits than its factorization.

58041721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23510.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 58041721 is about 7618.5117313029. The cubic root of 58041721 is about 387.1804560954.

The spelling of 58041721 in words is "fifty-eight million, forty-one thousand, seven hundred twenty-one".