71976245 has 24 divisors (see below), whose sum is σ = 95504640. Its totient is φ = 52034400.

The previous prime is 71976241. The next prime is 71976251. The reversal of 71976245 is 54267917.

It is not a de Polignac number, because 71976245 - 2² = 71976241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71976241) 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 in 23 ways as a sum of consecutive naturals, for example, 163736 + ... + 164174.

It is an arithmetic number, because the mean of its divisors is an integer number (3979360).

Almost surely, 2^71976245 is an apocalyptic number.

It is an amenable number.

71976245 is a deficient number, since it is larger than the sum of its proper divisors (23528395).

71976245 is a wasteful number, since it uses less digits than its factorization.

71976245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737 (or 726 counting only the distinct ones).

The product of its digits is 105840, while the sum is 41.

The square root of 71976245 is about 8483.8814819633. The cubic root of 71976245 is about 415.9710073637.

The spelling of 71976245 in words is "seventy-one million, nine hundred seventy-six thousand, two hundred forty-five".