20976153 has 16 divisors (see below), whose sum is σ = 30830016. Its totient is φ = 12579840.

The previous prime is 20976139. The next prime is 20976167. The reversal of 20976153 is 35167902.

It is an interprime number because it is at equal distance from previous prime (20976139) and next prime (20976167).

It is not a de Polignac number, because 20976153 - 2⁵ = 20976121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (20976103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76 + ... + 6477.

It is an arithmetic number, because the mean of its divisors is an integer number (1926876).

Almost surely, 2^20976153 is an apocalyptic number.

It is an amenable number.

20976153 is a deficient number, since it is larger than the sum of its proper divisors (9853863).

20976153 is a wasteful number, since it uses less digits than its factorization.

20976153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6664.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 20976153 is about 4579.9730348551. The cubic root of 20976153 is about 275.7879462343.

The spelling of 20976153 in words is "twenty million, nine hundred seventy-six thousand, one hundred fifty-three".