58491078 has 16 divisors (see below), whose sum is σ = 118630656. Its totient is φ = 19222280.

The previous prime is 58491071. The next prime is 58491089. The reversal of 58491078 is 87019485.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58491071) 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, 68226 + ... + 69077.

It is an arithmetic number, because the mean of its divisors is an integer number (7414416).

Almost surely, 2^58491078 is an apocalyptic number.

58491078 is an abundant number, since it is smaller than the sum of its proper divisors (60139578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

58491078 is a wasteful number, since it uses less digits than its factorization.

58491078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137379.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 58491078 is about 7647.9459987633. The cubic root of 58491078 is about 388.1770678330.

The spelling of 58491078 in words is "fifty-eight million, four hundred ninety-one thousand, seventy-eight".