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94021 = 167563

94021 has 4 divisors (see below), whose sum is σ = 94752. Its totient is φ = 93292.

The previous prime is 94009. The next prime is 94033. The reversal of 94021 is 12049.

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, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (94009) and next prime (94033).

It is a cyclic number.

It is not a de Polignac number, because 94021 - 27 = 93893 is a prime.

It is a Duffinian number.

94021 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 93986 and 94004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94121) 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, 115 + ... + 448.

It is an arithmetic number, because the mean of its divisors is an integer number (23688).

294021 is an apocalyptic number.

It is an amenable number.

94021 is a deficient number, since it is larger than the sum of its proper divisors (731).

94021 is a wasteful number, since it uses less digits than its factorization.

94021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 94021 is about 306.6284396464. The cubic root of 94021 is about 45.4717451273.

It can be divided in two parts, 940 and 21, that added together give a square (961 = 312).

The spelling of 94021 in words is "ninety-four thousand, twenty-one".

Divisors: 1 167 563 94021