58638381 has 4 divisors (see below), whose sum is σ = 78184512. Its totient is φ = 39092252.

The previous prime is 58638373. The next prime is 58638409. The reversal of 58638381 is 18383685.

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 a cyclic number.

It is not a de Polignac number, because 58638381 - 2³ = 58638373 is a prime.

It is a super-2 number, since 2×58638381² = 6876919452602322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58638301) 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, 9773061 + ... + 9773066.

It is an arithmetic number, because the mean of its divisors is an integer number (19546128).

Almost surely, 2^58638381 is an apocalyptic number.

It is an amenable number.

58638381 is a deficient number, since it is larger than the sum of its proper divisors (19546131).

58638381 is a wasteful number, since it uses less digits than its factorization.

58638381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19546130.

The product of its digits is 138240, while the sum is 42.

The square root of 58638381 is about 7657.5701759762. The cubic root of 58638381 is about 388.5026543185.

The spelling of 58638381 in words is "fifty-eight million, six hundred thirty-eight thousand, three hundred eighty-one".