20777214 has 16 divisors (see below), whose sum is σ = 41635728. Its totient is φ = 6912192.

The previous prime is 20777209. The next prime is 20777231. The reversal of 20777214 is 41277702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234 + ... + 6450.

It is an arithmetic number, because the mean of its divisors is an integer number (2602233).

Almost surely, 2^20777214 is an apocalyptic number.

20777214 is an abundant number, since it is smaller than the sum of its proper divisors (20858514).

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

20777214 is a wasteful number, since it uses less digits than its factorization.

20777214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6779.

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 20777214 is about 4558.2029353683. The cubic root of 20777214 is about 274.9133126216.

It can be divided in two parts, 207 and 77214, that added together give a triangular number (77421 = T₃₉₃).

The spelling of 20777214 in words is "twenty million, seven hundred seventy-seven thousand, two hundred fourteen".