58639690 has 16 divisors (see below), whose sum is σ = 105966792. Its totient is φ = 23363584.

The previous prime is 58639667. The next prime is 58639729. The reversal of 58639690 is 9693685.

It can be written as a sum of positive squares in 4 ways, for example, as 55517401 + 3122289 = 7451^2 + 1767^2 .

It is a super-3 number, since 3×58639690³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 58639690.

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, 8839 + ... + 13978.

Almost surely, 2^58639690 is an apocalyptic number.

58639690 is a deficient number, since it is larger than the sum of its proper divisors (47327102).

58639690 is a wasteful number, since it uses less digits than its factorization.

58639690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23081.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 58639690 is about 7657.6556464756. The cubic root of 58639690 is about 388.5055451793.

It can be divided in two parts, 5863 and 9690, that multiplied together give a triangular number (56812470 = T₁₀₆₅₉).

The spelling of 58639690 in words is "fifty-eight million, six hundred thirty-nine thousand, six hundred ninety".