60691191 has 8 divisors (see below), whose sum is σ = 88278144. Its totient is φ = 36782520.

The previous prime is 60691159. The next prime is 60691199. The reversal of 60691191 is 19119606.

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

It is not a de Polignac number, because 60691191 - 2⁵ = 60691159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1839127 = 60691191 / (6 + 0 + 6 + 9 + 1 + 1 + 9 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60691199) 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, 919531 + ... + 919596.

It is an arithmetic number, because the mean of its divisors is an integer number (11034768).

Almost surely, 2^60691191 is an apocalyptic number.

60691191 is a deficient number, since it is larger than the sum of its proper divisors (27586953).

60691191 is a wasteful number, since it uses less digits than its factorization.

60691191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839141.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 60691191 is about 7790.4551214932. The cubic root of 60691191 is about 392.9843178224.

It can be divided in two parts, 6069 and 1191, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 60691191 in words is "sixty million, six hundred ninety-one thousand, one hundred ninety-one".