71097655 has 16 divisors (see below), whose sum is σ = 91873440. Its totient is φ = 52621312.

The previous prime is 71097643. The next prime is 71097661. The reversal of 71097655 is 55679017.

It is a cyclic number.

It is not a de Polignac number, because 71097655 - 2¹⁵ = 71064887 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2074 + ... + 12103.

It is an arithmetic number, because the mean of its divisors is an integer number (5742090).

Almost surely, 2^71097655 is an apocalyptic number.

71097655 is a deficient number, since it is larger than the sum of its proper divisors (20775785).

71097655 is a wasteful number, since it uses less digits than its factorization.

71097655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14258.

The product of its (nonzero) digits is 66150, while the sum is 40.

The square root of 71097655 is about 8431.9425401268. The cubic root of 71097655 is about 414.2715337709.

The spelling of 71097655 in words is "seventy-one million, ninety-seven thousand, six hundred fifty-five".