20770708 has 24 divisors (see below), whose sum is σ = 42392000. Its totient is φ = 8901144.

The previous prime is 20770703. The next prime is 20770709. The reversal of 20770708 is 80707702.

It is a self number, because there is not a number n which added to its sum of digits gives 20770708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20770703) 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, 6198 + ... + 8941.

Almost surely, 2^20770708 is an apocalyptic number.

20770708 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20770708 is an abundant number, since it is smaller than the sum of its proper divisors (21621292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20770708 is a wasteful number, since it uses less digits than its factorization.

20770708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15164 (or 15148 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 20770708 is about 4557.4892210514. The cubic root of 20770708 is about 274.8846149542.

The spelling of 20770708 in words is "twenty million, seven hundred seventy thousand, seven hundred eight".