71480091 has 16 divisors (see below), whose sum is σ = 97611264. Its totient is φ = 46507104.

The previous prime is 71480077. The next prime is 71480107. The reversal of 71480091 is 19008417.

It is not a de Polignac number, because 71480091 - 2⁶ = 71480027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71480011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86020 + ... + 86846.

It is an arithmetic number, because the mean of its divisors is an integer number (6100704).

Almost surely, 2^71480091 is an apocalyptic number.

71480091 is a deficient number, since it is larger than the sum of its proper divisors (26131173).

71480091 is a wasteful number, since it uses less digits than its factorization.

71480091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 71480091 is about 8454.5899368331. The cubic root of 71480091 is about 415.0129980929.

The spelling of 71480091 in words is "seventy-one million, four hundred eighty thousand, ninety-one".