71453416 has 8 divisors (see below), whose sum is σ = 133975170. Its totient is φ = 35726704.

The previous prime is 71453377. The next prime is 71453449. The reversal of 71453416 is 61435417.

It can be written as a sum of positive squares in only one way, i.e., 69789316 + 1664100 = 8354^2 + 1290^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4465831 + ... + 4465846.

Almost surely, 2^71453416 is an apocalyptic number.

It is an amenable number.

71453416 is a deficient number, since it is larger than the sum of its proper divisors (62521754).

71453416 is a wasteful number, since it uses less digits than its factorization.

71453416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8931683 (or 8931679 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 71453416 is about 8453.0122441648. The cubic root of 71453416 is about 414.9613667041.

The spelling of 71453416 in words is "seventy-one million, four hundred fifty-three thousand, four hundred sixteen".