20770633 has 8 divisors (see below), whose sum is σ = 23341248. Its totient is φ = 18339024.

The previous prime is 20770619. The next prime is 20770637. The reversal of 20770633 is 33607702.

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

It is a cyclic number.

It is not a de Polignac number, because 20770633 - 2⁹ = 20770121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20770637) 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, 34435 + ... + 35032.

It is an arithmetic number, because the mean of its divisors is an integer number (2917656).

Almost surely, 2^20770633 is an apocalyptic number.

20770633 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20770633 is a deficient number, since it is larger than the sum of its proper divisors (2570615).

20770633 is a wasteful number, since it uses less digits than its factorization.

20770633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69503.

The product of its (nonzero) digits is 5292, while the sum is 28.

The square root of 20770633 is about 4557.4809928293. The cubic root of 20770633 is about 274.8842840977.

The spelling of 20770633 in words is "twenty million, seven hundred seventy thousand, six hundred thirty-three".