83740537 has 4 divisors (see below), whose sum is σ = 83765236. Its totient is φ = 83715840.

The previous prime is 83740519. The next prime is 83740633. The reversal of 83740537 is 73504738.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26873856 + 56866681 = 5184^2 + 7541^2 .

It is a cyclic number.

It is not a de Polignac number, because 83740537 - 2¹¹ = 83738489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83740496 and 83740505.

It is not an unprimeable number, because it can be changed into a prime (83740837) 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, 6264 + ... + 14377.

It is an arithmetic number, because the mean of its divisors is an integer number (20941309).

Almost surely, 2^83740537 is an apocalyptic number.

It is an amenable number.

83740537 is a deficient number, since it is larger than the sum of its proper divisors (24699).

83740537 is a wasteful number, since it uses less digits than its factorization.

83740537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24698.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 83740537 is about 9150.9855753356. The cubic root of 83740537 is about 437.5005270198.

The spelling of 83740537 in words is "eighty-three million, seven hundred forty thousand, five hundred thirty-seven".