20276973 has 20 divisors (see below), whose sum is σ = 30492000. Its totient is φ = 13428072.

The previous prime is 20276969. The next prime is 20276989. The reversal of 20276973 is 37967202.

It is not a de Polignac number, because 20276973 - 2² = 20276969 is a prime.

It is a super-2 number, since 2×20276973² = 822311268085458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20276923) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12778 + ... + 14276.

It is an arithmetic number, because the mean of its divisors is an integer number (1524600).

Almost surely, 2^20276973 is an apocalyptic number.

It is an amenable number.

20276973 is a deficient number, since it is larger than the sum of its proper divisors (10215027).

20276973 is a wasteful number, since it uses less digits than its factorization.

20276973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678 (or 1669 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 20276973 is about 4502.9960026631. The cubic root of 20276973 is about 272.6890554630.

Adding to 20276973 its sum of digits (36), we get a square (20277009 = 4503²).

The spelling of 20276973 in words is "twenty million, two hundred seventy-six thousand, nine hundred seventy-three".