71286494 has 8 divisors (see below), whose sum is σ = 109819848. Its totient is φ = 34679880.

The previous prime is 71286493. The next prime is 71286521. The reversal of 71286494 is 49468217.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71286493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481592 + ... + 481739.

It is an arithmetic number, because the mean of its divisors is an integer number (13727481).

Almost surely, 2^71286494 is an apocalyptic number.

71286494 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

71286494 is a deficient number, since it is larger than the sum of its proper divisors (38533354).

71286494 is a wasteful number, since it uses less digits than its factorization.

71286494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963370.

The product of its digits is 96768, while the sum is 41.

The square root of 71286494 is about 8443.1329493263. The cubic root of 71286494 is about 414.6379849695.

The spelling of 71286494 in words is "seventy-one million, two hundred eighty-six thousand, four hundred ninety-four".