71307494 has 8 divisors (see below), whose sum is σ = 112590840. Its totient is φ = 33777216.

The previous prime is 71307493. The next prime is 71307527. The reversal of 71307494 is 49470317.

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 (71307493) 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, 938219 + ... + 938294.

It is an arithmetic number, because the mean of its divisors is an integer number (14073855).

Almost surely, 2^71307494 is an apocalyptic number.

71307494 is a deficient number, since it is larger than the sum of its proper divisors (41283346).

71307494 is a wasteful number, since it uses less digits than its factorization.

71307494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876534.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 71307494 is about 8444.3764719487. The cubic root of 71307494 is about 414.6786964812.

The spelling of 71307494 in words is "seventy-one million, three hundred seven thousand, four hundred ninety-four".