83814520 has 16 divisors (see below), whose sum is σ = 188582760. Its totient is φ = 33525792.

The previous prime is 83814517. The next prime is 83814559. The reversal of 83814520 is 2541838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047642 + ... + 1047721.

Almost surely, 2^83814520 is an apocalyptic number.

It is an amenable number.

83814520 is an abundant number, since it is smaller than the sum of its proper divisors (104768240).

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

83814520 is a wasteful number, since it uses less digits than its factorization.

83814520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095374 (or 2095370 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 83814520 is about 9155.0270343675. The cubic root of 83814520 is about 437.6293299281.

The spelling of 83814520 in words is "eighty-three million, eight hundred fourteen thousand, five hundred twenty".