71406248 has 8 divisors (see below), whose sum is σ = 133886730. Its totient is φ = 35703120.

The previous prime is 71406241. The next prime is 71406271. The reversal of 71406248 is 84260417.

It can be written as a sum of positive squares in only one way, i.e., 70526404 + 879844 = 8398^2 + 938^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (71406241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4462883 + ... + 4462898.

Almost surely, 2^71406248 is an apocalyptic number.

It is an amenable number.

71406248 is a deficient number, since it is larger than the sum of its proper divisors (62480482).

71406248 is a wasteful number, since it uses less digits than its factorization.

71406248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8925787 (or 8925783 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 71406248 is about 8450.2217722377. The cubic root of 71406248 is about 414.8700381750.

The spelling of 71406248 in words is "seventy-one million, four hundred six thousand, two hundred forty-eight".