20966902 has 8 divisors (see below), whose sum is σ = 34309512. Its totient is φ = 9530400.

The previous prime is 20966851. The next prime is 20966903.

20966902 is nontrivially palindromic in base 10.

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

It is a super-2 number, since 2×20966902² = 879221958955208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20966903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476499 + ... + 476542.

It is an arithmetic number, because the mean of its divisors is an integer number (4288689).

Almost surely, 2^20966902 is an apocalyptic number.

20966902 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20966902 is a deficient number, since it is larger than the sum of its proper divisors (13342610).

20966902 is a wasteful number, since it uses less digits than its factorization.

20966902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953054.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 20966902 is about 4578.9629830345. The cubic root of 20966902 is about 275.7473971808.

It can be divided in two parts, 2096 and 6902, that added together give a palindrome (8998).

The spelling of 20966902 in words is "twenty million, nine hundred sixty-six thousand, nine hundred two".