83897697 has 16 divisors (see below), whose sum is σ = 120714048. Its totient is φ = 51524160.

The previous prime is 83897651. The next prime is 83897699. The reversal of 83897697 is 79679838.

It is not a de Polignac number, because 83897697 - 2⁸ = 83897441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83897699) 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, 20047 + ... + 23867.

It is an arithmetic number, because the mean of its divisors is an integer number (7544628).

Almost surely, 2^83897697 is an apocalyptic number.

It is an amenable number.

83897697 is a deficient number, since it is larger than the sum of its proper divisors (36816351).

83897697 is a wasteful number, since it uses less digits than its factorization.

83897697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400.

The product of its digits is 4572288, while the sum is 57.

The square root of 83897697 is about 9159.5686033787. The cubic root of 83897697 is about 437.7740489264.

The spelling of 83897697 in words is "eighty-three million, eight hundred ninety-seven thousand, six hundred ninety-seven".