20954337 has 4 divisors (see below), whose sum is σ = 27939120. Its totient is φ = 13969556.

The previous prime is 20954333. The next prime is 20954341. The reversal of 20954337 is 73345902.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (20954333) and next prime (20954341).

It is a cyclic number.

It is not a de Polignac number, because 20954337 - 2² = 20954333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20954298 and 20954307.

It is not an unprimeable number, because it can be changed into a prime (20954333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3492387 + ... + 3492392.

It is an arithmetic number, because the mean of its divisors is an integer number (6984780).

Almost surely, 2^20954337 is an apocalyptic number.

It is an amenable number.

20954337 is a deficient number, since it is larger than the sum of its proper divisors (6984783).

20954337 is an equidigital number, since it uses as much as digits as its factorization.

20954337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6984782.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 20954337 is about 4577.5907418641. The cubic root of 20954337 is about 275.6923030712.

The spelling of 20954337 in words is "twenty million, nine hundred fifty-four thousand, three hundred thirty-seven".