20677702 has 4 divisors (see below), whose sum is σ = 31016556. Its totient is φ = 10338850.

The previous prime is 20677693. The next prime is 20677717. The reversal of 20677702 is 20777602.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×20677702³ (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5169424 + ... + 5169427.

It is an arithmetic number, because the mean of its divisors is an integer number (7754139).

Almost surely, 2^20677702 is an apocalyptic number.

20677702 is a deficient number, since it is larger than the sum of its proper divisors (10338854).

20677702 is a wasteful number, since it uses less digits than its factorization.

20677702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10338853.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 20677702 is about 4547.2741285302. The cubic root of 20677702 is about 274.4737130090.

The spelling of 20677702 in words is "twenty million, six hundred seventy-seven thousand, seven hundred two".