60971491 has 4 divisors (see below), whose sum is σ = 69681712. Its totient is φ = 52261272.

The previous prime is 60971473. The next prime is 60971507. The reversal of 60971491 is 19417906.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 60971491 - 2⁷ = 60971363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 60971491.

It is not an unprimeable number, because it can be changed into a prime (60971441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4355100 + ... + 4355113.

It is an arithmetic number, because the mean of its divisors is an integer number (17420428).

Almost surely, 2^60971491 is an apocalyptic number.

60971491 is a deficient number, since it is larger than the sum of its proper divisors (8710221).

60971491 is an equidigital number, since it uses as much as digits as its factorization.

60971491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8710220.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 60971491 is about 7808.4243609066. The cubic root of 60971491 is about 393.5883832905.

The spelling of 60971491 in words is "sixty million, nine hundred seventy-one thousand, four hundred ninety-one".