58491905 has 8 divisors (see below), whose sum is σ = 70482984. Its totient is φ = 46598400.

The previous prime is 58491877. The next prime is 58491929. The reversal of 58491905 is 50919485.

It is a happy number.

It is a Cunningham number, because it is equal to 7648²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 868624 + 57623281 = 932^2 + 7591^2 .

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

It is not a de Polignac number, because 58491905 - 2⁶ = 58491841 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23066 + ... + 25475.

It is an arithmetic number, because the mean of its divisors is an integer number (8810373).

Almost surely, 2^58491905 is an apocalyptic number.

It is an amenable number.

58491905 is a deficient number, since it is larger than the sum of its proper divisors (11991079).

58491905 is a wasteful number, since it uses less digits than its factorization.

58491905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48787.

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 58491905 is about 7648.0000653766. Note that the first 4 decimals coincide. The cubic root of 58491905 is about 388.1788972910.

The spelling of 58491905 in words is "fifty-eight million, four hundred ninety-one thousand, nine hundred five".