20770485 has 8 divisors (see below), whose sum is σ = 33232800. Its totient is φ = 11077584.

The previous prime is 20770459. The next prime is 20770489. The reversal of 20770485 is 58407702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20770485 - 2⁸ = 20770229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20770489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692335 + ... + 692364.

It is an arithmetic number, because the mean of its divisors is an integer number (4154100).

Almost surely, 2^20770485 is an apocalyptic number.

It is an amenable number.

20770485 is a deficient number, since it is larger than the sum of its proper divisors (12462315).

20770485 is a wasteful number, since it uses less digits than its factorization.

20770485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384707.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 20770485 is about 4557.4647557606. The cubic root of 20770485 is about 274.8836312052.

The spelling of 20770485 in words is "twenty million, seven hundred seventy thousand, four hundred eighty-five".