58491869 has 8 divisors (see below), whose sum is σ = 60597720. Its totient is φ = 56392000.

The previous prime is 58491841. The next prime is 58491877. The reversal of 58491869 is 96819485.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3286969 + 55204900 = 1813^2 + 7430^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 58491869 - 2¹² = 58487773 is a prime.

It is a super-2 number, since 2×58491869² = 6842597478226322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58491809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29819 + ... + 31719.

It is an arithmetic number, because the mean of its divisors is an integer number (7574715).

Almost surely, 2^58491869 is an apocalyptic number.

It is an amenable number.

58491869 is a deficient number, since it is larger than the sum of its proper divisors (2105851).

58491869 is a wasteful number, since it uses less digits than its factorization.

58491869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2991.

The product of its digits is 622080, while the sum is 50.

The square root of 58491869 is about 7647.9977118197. The cubic root of 58491869 is about 388.1788176535.

The spelling of 58491869 in words is "fifty-eight million, four hundred ninety-one thousand, eight hundred sixty-nine".