83365997 has 32 divisors (see below), whose sum is σ = 102453120. Its totient is φ = 66816000.

The previous prime is 83365969. The next prime is 83366009. The reversal of 83365997 is 79956338.

It is a cyclic number.

It is not a de Polignac number, because 83365997 - 2¹⁰ = 83364973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83365907) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 345797 + ... + 346037.

It is an arithmetic number, because the mean of its divisors is an integer number (3201660).

Almost surely, 2^83365997 is an apocalyptic number.

It is an amenable number.

83365997 is a deficient number, since it is larger than the sum of its proper divisors (19087123).

83365997 is a wasteful number, since it uses less digits than its factorization.

83365997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365.

The product of its digits is 1224720, while the sum is 50.

The square root of 83365997 is about 9130.4981791795. The cubic root of 83365997 is about 436.8472935957.

The spelling of 83365997 in words is "eighty-three million, three hundred sixty-five thousand, nine hundred ninety-seven".