83887420 has 12 divisors (see below), whose sum is σ = 176163624. Its totient is φ = 33554960.

The previous prime is 83887409. The next prime is 83887421. The reversal of 83887420 is 2478838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83887421) 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, 2097166 + ... + 2097205.

It is an arithmetic number, because the mean of its divisors is an integer number (14680302).

Almost surely, 2^83887420 is an apocalyptic number.

It is an amenable number.

83887420 is an abundant number, since it is smaller than the sum of its proper divisors (92276204).

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

83887420 is a wasteful number, since it uses less digits than its factorization.

83887420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4194380 (or 4194378 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 83887420 is about 9159.0075881615. The cubic root of 83887420 is about 437.7561732367.

The spelling of 83887420 in words is "eighty-three million, eight hundred eighty-seven thousand, four hundred twenty".