71386492 has 6 divisors (see below), whose sum is σ = 124926368. Its totient is φ = 35693244.

The previous prime is 71386489. The next prime is 71386499. The reversal of 71386492 is 29468317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71386499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8923308 + ... + 8923315.

Almost surely, 2^71386492 is an apocalyptic number.

It is an amenable number.

71386492 is a deficient number, since it is larger than the sum of its proper divisors (53539876).

71386492 is a wasteful number, since it uses less digits than its factorization.

71386492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17846627 (or 17846625 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 71386492 is about 8449.0527279690. The cubic root of 71386492 is about 414.8317738834.

The spelling of 71386492 in words is "seventy-one million, three hundred eighty-six thousand, four hundred ninety-two".