83654861 has 8 divisors (see below), whose sum is σ = 86242560. Its totient is φ = 81106272.

The previous prime is 83654843. The next prime is 83654863. The reversal of 83654861 is 16845638.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83654861 - 2¹⁰ = 83653837 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 (83654863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5405 + ... + 14018.

It is an arithmetic number, because the mean of its divisors is an integer number (10780320).

Almost surely, 2^83654861 is an apocalyptic number.

It is an amenable number.

83654861 is a deficient number, since it is larger than the sum of its proper divisors (2587699).

83654861 is a wasteful number, since it uses less digits than its factorization.

83654861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19555.

The product of its digits is 138240, while the sum is 41.

The square root of 83654861 is about 9146.3031329603. The cubic root of 83654861 is about 437.3512720035.

The spelling of 83654861 in words is "eighty-three million, six hundred fifty-four thousand, eight hundred sixty-one".