83554861 has 8 divisors (see below), whose sum is σ = 91897344. Its totient is φ = 75486000.

The previous prime is 83554853. The next prime is 83554937. The reversal of 83554861 is 16845538.

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 83554861 - 2³ = 83554853 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 (83554831) 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, 67765 + ... + 68986.

It is an arithmetic number, because the mean of its divisors is an integer number (11487168).

Almost surely, 2^83554861 is an apocalyptic number.

It is an amenable number.

83554861 is a deficient number, since it is larger than the sum of its proper divisors (8342483).

83554861 is a wasteful number, since it uses less digits than its factorization.

83554861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136811.

The product of its digits is 115200, while the sum is 40.

The square root of 83554861 is about 9140.8348087032. The cubic root of 83554861 is about 437.1769343935.

It can be divided in two parts, 835 and 54861, that added together give a square (55696 = 236²).

The spelling of 83554861 in words is "eighty-three million, five hundred fifty-four thousand, eight hundred sixty-one".