71204749 has 12 divisors (see below), whose sum is σ = 89448352. Its totient is φ = 55483560.

The previous prime is 71204699. The next prime is 71204753. The reversal of 71204749 is 94740217.

It is not a de Polignac number, because 71204749 - 2¹⁵ = 71171981 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71204149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41187 + ... + 42880.

Almost surely, 2^71204749 is an apocalyptic number.

It is an amenable number.

71204749 is a deficient number, since it is larger than the sum of its proper divisors (18243603).

71204749 is a wasteful number, since it uses less digits than its factorization.

71204749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84096 (or 84085 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 71204749 is about 8438.2906444374. The cubic root of 71204749 is about 414.4794343839.

The spelling of 71204749 in words is "seventy-one million, two hundred four thousand, seven hundred forty-nine".