19970485 has 16 divisors (see below), whose sum is σ = 24967152. Its totient is φ = 15321600.

The previous prime is 19970471. The next prime is 19970507. The reversal of 19970485 is 58407991.

It can be written as a sum of positive squares in 8 ways, for example, as 10588516 + 9381969 = 3254^2 + 3063^2 .

It is not a de Polignac number, because 19970485 - 2¹¹ = 19968437 is a prime.

It is a super-2 number, since 2×19970485² = 797640542270450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11707 + ... + 13303.

It is an arithmetic number, because the mean of its divisors is an integer number (1560447).

Almost surely, 2^19970485 is an apocalyptic number.

It is an amenable number.

19970485 is a deficient number, since it is larger than the sum of its proper divisors (4996667).

19970485 is a wasteful number, since it uses less digits than its factorization.

19970485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 19970485 is about 4468.8348593341. The cubic root of 19970485 is about 271.3081691950.

The spelling of 19970485 in words is "nineteen million, nine hundred seventy thousand, four hundred eighty-five".