83123087 has 4 divisors (see below), whose sum is σ = 83489496. Its totient is φ = 82756680.

The previous prime is 83123071. The next prime is 83123111. The reversal of 83123087 is 78032138.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78032138 = 2 ⋅39016069.

It is a cyclic number.

It is not a de Polignac number, because 83123087 - 2⁴ = 83123071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83129087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182864 + ... + 183317.

It is an arithmetic number, because the mean of its divisors is an integer number (20872374).

Almost surely, 2^83123087 is an apocalyptic number.

83123087 is a deficient number, since it is larger than the sum of its proper divisors (366409).

83123087 is a wasteful number, since it uses less digits than its factorization.

83123087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366408.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 83123087 is about 9117.1863532561. The cubic root of 83123087 is about 436.4225888326.

The spelling of 83123087 in words is "eighty-three million, one hundred twenty-three thousand, eighty-seven".