71634485 has 8 divisors (see below), whose sum is σ = 92573880. Its totient is φ = 52899264.

The previous prime is 71634461. The next prime is 71634499. The reversal of 71634485 is 58443617.

It can be written as a sum of positive squares in 4 ways, for example, as 96721 + 71537764 = 311^2 + 8458^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71634485 - 2¹⁴ = 71618101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550970 + ... + 551099.

It is an arithmetic number, because the mean of its divisors is an integer number (11571735).

Almost surely, 2^71634485 is an apocalyptic number.

It is an amenable number.

71634485 is a deficient number, since it is larger than the sum of its proper divisors (20939395).

71634485 is a wasteful number, since it uses less digits than its factorization.

71634485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102087.

The product of its digits is 80640, while the sum is 38.

The square root of 71634485 is about 8463.7157915422. The cubic root of 71634485 is about 415.3115867756.

The spelling of 71634485 in words is "seventy-one million, six hundred thirty-four thousand, four hundred eighty-five".