84060621 has 6 divisors (see below), whose sum is σ = 121420910. Its totient is φ = 56040408.

The previous prime is 84060601. The next prime is 84060659. The reversal of 84060621 is 12606048.

It can be written as a sum of positive squares in only one way, i.e., 64160100 + 19900521 = 8010^2 + 4461^2 .

It is not a de Polignac number, because 84060621 - 2¹⁴ = 84044237 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 (84060601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4670026 + ... + 4670043.

Almost surely, 2^84060621 is an apocalyptic number.

It is an amenable number.

84060621 is a deficient number, since it is larger than the sum of its proper divisors (37360289).

84060621 is a wasteful number, since it uses less digits than its factorization.

84060621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9340075 (or 9340072 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 84060621 is about 9168.4579401337. The cubic root of 84060621 is about 438.0572421590.

Adding to 84060621 its reverse (12606048), we get a palindrome (96666669).

It can be divided in two parts, 84060 and 621, that added together give a square (84681 = 291²).

The spelling of 84060621 in words is "eighty-four million, sixty thousand, six hundred twenty-one".