83700540 has 360 divisors, whose sum is σ = 335249376. Its totient is φ = 17107200.

The previous prime is 83700521. The next prime is 83700541. The reversal of 83700540 is 4500738.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83700541) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1372110 + ... + 1372170.

Almost surely, 2^83700540 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 83700540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167624688).

83700540 is an abundant number, since it is smaller than the sum of its proper divisors (251548836).

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

83700540 is a wasteful number, since it uses less digits than its factorization.

83700540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 83700540 is about 9148.7999213012. The cubic root of 83700540 is about 437.4308614555.

The spelling of 83700540 in words is "eighty-three million, seven hundred thousand, five hundred forty".