58427721 has 48 divisors (see below), whose sum is σ = 97493760. Its totient is φ = 33384960.

The previous prime is 58427693. The next prime is 58427723. The reversal of 58427721 is 12772485.

58427721 is a `hidden beast` number, since 584 + 2 + 7 + 72 + 1 = 666.

It is not a de Polignac number, because 58427721 - 2⁹ = 58427209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (58427723) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 134721 + ... + 135153.

It is an arithmetic number, because the mean of its divisors is an integer number (2031120).

Almost surely, 2^58427721 is an apocalyptic number.

It is an amenable number.

58427721 is a deficient number, since it is larger than the sum of its proper divisors (39066039).

58427721 is a wasteful number, since it uses less digits than its factorization.

58427721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 523 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 58427721 is about 7643.8027839551. The cubic root of 58427721 is about 388.0368605821.

The spelling of 58427721 in words is "fifty-eight million, four hundred twenty-seven thousand, seven hundred twenty-one".