71248807 has 8 divisors (see below), whose sum is σ = 83321216. Its totient is φ = 59649912.

The previous prime is 71248799. The next prime is 71248847. The reversal of 71248807 is 70884217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71248807 - 2³ = 71248799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71248847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118053 + ... + 118654.

It is an arithmetic number, because the mean of its divisors is an integer number (10415152).

Almost surely, 2^71248807 is an apocalyptic number.

71248807 is a deficient number, since it is larger than the sum of its proper divisors (12072409).

71248807 is a wasteful number, since it uses less digits than its factorization.

71248807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236757.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 71248807 is about 8440.9008405501. The cubic root of 71248807 is about 414.5649032611.

It can be divided in two parts, 7124 and 8807, that added together give a triangular number (15931 = T₁₇₈).

The spelling of 71248807 in words is "seventy-one million, two hundred forty-eight thousand, eight hundred seven".