83400487 has 6 divisors (see below), whose sum is σ = 88595288. Its totient is φ = 78494304.

The previous prime is 83400467. The next prime is 83400497. The reversal of 83400487 is 78400438.

It is not a de Polignac number, because 83400487 - 2¹¹ = 83398439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83400467) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144003 + ... + 144580.

Almost surely, 2^83400487 is an apocalyptic number.

83400487 is a deficient number, since it is larger than the sum of its proper divisors (5194801).

83400487 is a wasteful number, since it uses less digits than its factorization.

83400487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288617 (or 288600 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 83400487 is about 9132.3867088511. The cubic root of 83400487 is about 436.9075291288.

The spelling of 83400487 in words is "eighty-three million, four hundred thousand, four hundred eighty-seven".