60070021 has 16 divisors (see below), whose sum is σ = 66919680. Its totient is φ = 53464320.

The previous prime is 60070019. The next prime is 60070079. The reversal of 60070021 is 12007006.

It is a cyclic number.

It is not a de Polignac number, because 60070021 - 2¹ = 60070019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 60069977 and 60070004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60070921) 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 15 ways as a sum of consecutive naturals, for example, 191761 + ... + 192073.

It is an arithmetic number, because the mean of its divisors is an integer number (4182480).

Almost surely, 2^60070021 is an apocalyptic number.

It is an amenable number.

60070021 is a deficient number, since it is larger than the sum of its proper divisors (6849659).

60070021 is a wasteful number, since it uses less digits than its factorization.

60070021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 60070021 is about 7750.4852106175. The cubic root of 60070021 is about 391.6389954396.

Adding to 60070021 its reverse (12007006), we get a palindrome (72077027).

The spelling of 60070021 in words is "sixty million, seventy thousand, twenty-one".