83625799 has 4 divisors (see below), whose sum is σ = 83758960. Its totient is φ = 83492640.

The previous prime is 83625761. The next prime is 83625811. The reversal of 83625799 is 99752638.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99752638 = 2 ⋅49876319.

It is a cyclic number.

It is not a de Polignac number, because 83625799 - 2²³ = 75237191 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 (83625709) 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, 65634 + ... + 66895.

It is an arithmetic number, because the mean of its divisors is an integer number (20939740).

Almost surely, 2^83625799 is an apocalyptic number.

83625799 is a deficient number, since it is larger than the sum of its proper divisors (133161).

83625799 is a wasteful number, since it uses less digits than its factorization.

83625799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133160.

The product of its digits is 816480, while the sum is 49.

The square root of 83625799 is about 9144.7142656291. The cubic root of 83625799 is about 437.3006203352.

It can be divided in two parts, 8362 and 5799, that added together give a square (14161 = 119²).

The spelling of 83625799 in words is "eighty-three million, six hundred twenty-five thousand, seven hundred ninety-nine".