83747136 has 112 divisors (see below), whose sum is σ = 254568960. Its totient is φ = 24030720.

The previous prime is 83747129. The next prime is 83747143. The reversal of 83747136 is 63174738.

It is an interprime number because it is at equal distance from previous prime (83747129) and next prime (83747143).

It is a junction number, because it is equal to n+sod(n) for n = 83747094 and 83747103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39085 + ... + 41171.

Almost surely, 2^83747136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83747136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127284480).

83747136 is an abundant number, since it is smaller than the sum of its proper divisors (170821824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83747136 is a wasteful number, since it uses less digits than its factorization.

83747136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132 (or 2122 counting only the distinct ones).

The product of its digits is 84672, while the sum is 39.

The square root of 83747136 is about 9151.3461304881. The cubic root of 83747136 is about 437.5120188263.

The spelling of 83747136 in words is "eighty-three million, seven hundred forty-seven thousand, one hundred thirty-six".