60991894 has 8 divisors (see below), whose sum is σ = 91593648. Its totient is φ = 30460680.

The previous prime is 60991823. The next prime is 60991913. The reversal of 60991894 is 49819906.

60991894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×60991894² = 7440022267414472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15417 + ... + 18964.

It is an arithmetic number, because the mean of its divisors is an integer number (11449206).

Almost surely, 2^60991894 is an apocalyptic number.

60991894 is a deficient number, since it is larger than the sum of its proper divisors (30601754).

60991894 is a wasteful number, since it uses less digits than its factorization.

60991894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35270.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 60991894 is about 7809.7307251915. The cubic root of 60991894 is about 393.6322807913.

The spelling of 60991894 in words is "sixty million, nine hundred ninety-one thousand, eight hundred ninety-four".