82754421 has 4 divisors (see below), whose sum is σ = 110339232. Its totient is φ = 55169612.

The previous prime is 82754401. The next prime is 82754431. The reversal of 82754421 is 12445728.

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 82754421 - 2⁷ = 82754293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82754401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13792401 + ... + 13792406.

It is an arithmetic number, because the mean of its divisors is an integer number (27584808).

Almost surely, 2^82754421 is an apocalyptic number.

It is an amenable number.

82754421 is a deficient number, since it is larger than the sum of its proper divisors (27584811).

82754421 is a wasteful number, since it uses less digits than its factorization.

82754421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27584810.

The product of its digits is 17920, while the sum is 33.

The square root of 82754421 is about 9096.9456962213. The cubic root of 82754421 is about 435.7764281058.

The spelling of 82754421 in words is "eighty-two million, seven hundred fifty-four thousand, four hundred twenty-one".