71822601 has 6 divisors (see below), whose sum is σ = 103743770. Its totient is φ = 47881728.

The previous prime is 71822591. The next prime is 71822659. The reversal of 71822601 is 10622817.

It can be written as a sum of positive squares in only one way, i.e., 71571600 + 251001 = 8460^2 + 501^2 .

It is not a de Polignac number, because 71822601 - 2⁹ = 71822089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71822801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3990136 + ... + 3990153.

Almost surely, 2^71822601 is an apocalyptic number.

It is an amenable number.

71822601 is a deficient number, since it is larger than the sum of its proper divisors (31921169).

71822601 is a wasteful number, since it uses less digits than its factorization.

71822601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7980295 (or 7980292 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 71822601 is about 8474.8215910425. The cubic root of 71822601 is about 415.6748125120.

The spelling of 71822601 in words is "seventy-one million, eight hundred twenty-two thousand, six hundred one".