20770675 has 6 divisors (see below), whose sum is σ = 25755668. Its totient is φ = 16616520.

The previous prime is 20770657. The next prime is 20770681. The reversal of 20770675 is 57607702.

It is not a de Polignac number, because 20770675 - 2⁹ = 20770163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20770675.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 415389 + ... + 415438.

Almost surely, 2^20770675 is an apocalyptic number.

20770675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20770675 is a deficient number, since it is larger than the sum of its proper divisors (4984993).

20770675 is an equidigital number, since it uses as much as digits as its factorization.

20770675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830837 (or 830832 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 34.

The square root of 20770675 is about 4557.4856006355. The cubic root of 20770675 is about 274.8844693774.

The spelling of 20770675 in words is "twenty million, seven hundred seventy thousand, six hundred seventy-five".