20977322 has 16 divisors (see below), whose sum is σ = 32925312. Its totient is φ = 10013280.

The previous prime is 20977321. The next prime is 20977331. The reversal of 20977322 is 22377902.

It is a zygodrome in base 4 and base 13.

It is not an unprimeable number, because it can be changed into a prime (20977321) 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, 1133 + ... + 6575.

It is an arithmetic number, because the mean of its divisors is an integer number (2057832).

Almost surely, 2^20977322 is an apocalyptic number.

20977322 is a deficient number, since it is larger than the sum of its proper divisors (11947990).

20977322 is a wasteful number, since it uses less digits than its factorization.

20977322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5533.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 20977322 is about 4580.1006539158. The cubic root of 20977322 is about 275.7930693554.

The spelling of 20977322 in words is "twenty million, nine hundred seventy-seven thousand, three hundred twenty-two".