71408486 has 4 divisors (see below), whose sum is σ = 107112732. Its totient is φ = 35704242.

The previous prime is 71408461. The next prime is 71408489. The reversal of 71408486 is 68480417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68480417 = 157 ⋅436181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71408489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17852120 + ... + 17852123.

It is an arithmetic number, because the mean of its divisors is an integer number (26778183).

Almost surely, 2^71408486 is an apocalyptic number.

71408486 is a deficient number, since it is larger than the sum of its proper divisors (35704246).

71408486 is a wasteful number, since it uses less digits than its factorization.

71408486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35704245.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 71408486 is about 8450.3541937602. The cubic root of 71408486 is about 414.8743723869.

The spelling of 71408486 in words is "seventy-one million, four hundred eight thousand, four hundred eighty-six".