83654440 has 16 divisors (see below), whose sum is σ = 188222580. Its totient is φ = 33461760.

The previous prime is 83654429. The next prime is 83654489. The reversal of 83654440 is 4445638.

It can be written as a sum of positive squares in 2 ways, for example, as 83210884 + 443556 = 9122^2 + 666^2 .

It is a junction number, because it is equal to n+sod(n) for n = 83654396 and 83654405.

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, 1045641 + ... + 1045720.

Almost surely, 2^83654440 is an apocalyptic number.

It is an amenable number.

83654440 is an abundant number, since it is smaller than the sum of its proper divisors (104568140).

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

83654440 is a wasteful number, since it uses less digits than its factorization.

83654440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091372 (or 2091368 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 83654440 is about 9146.2801181683. The cubic root of 83654440 is about 437.3505383335.

The spelling of 83654440 in words is "eighty-three million, six hundred fifty-four thousand, four hundred forty".