84555401 has 4 divisors (see below), whose sum is σ = 96634752. Its totient is φ = 72476052.

The previous prime is 84555379. The next prime is 84555409. The reversal of 84555401 is 10455548.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84555401 - 2¹⁰ = 84554377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84555409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6039665 + ... + 6039678.

It is an arithmetic number, because the mean of its divisors is an integer number (24158688).

Almost surely, 2^84555401 is an apocalyptic number.

It is an amenable number.

84555401 is a deficient number, since it is larger than the sum of its proper divisors (12079351).

84555401 is a wasteful number, since it uses less digits than its factorization.

84555401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12079350.

The product of its (nonzero) digits is 16000, while the sum is 32.

The square root of 84555401 is about 9195.4010788002. The cubic root of 84555401 is about 438.9150282734.

The spelling of 84555401 in words is "eighty-four million, five hundred fifty-five thousand, four hundred one".