83078065 has 16 divisors (see below), whose sum is σ = 120638592. Its totient is φ = 53616384.

The previous prime is 83078053. The next prime is 83078111. The reversal of 83078065 is 56087038.

It is a cyclic number.

It is not a de Polignac number, because 83078065 - 2¹¹ = 83076017 is a prime.

It is a Duffinian 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, 69219 + ... + 70408.

It is an arithmetic number, because the mean of its divisors is an integer number (7539912).

Almost surely, 2^83078065 is an apocalyptic number.

83078065 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

83078065 is a deficient number, since it is larger than the sum of its proper divisors (37560527).

83078065 is a wasteful number, since it uses less digits than its factorization.

83078065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139656.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 83078065 is about 9114.7169456873. The cubic root of 83078065 is about 436.3437813396.

The spelling of 83078065 in words is "eighty-three million, seventy-eight thousand, sixty-five".