20926463 has 2 divisors, whose sum is σ = 20926464. Its totient is φ = 20926462.

The previous prime is 20926459. The next prime is 20926483. The reversal of 20926463 is 36462902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20926463 - 2² = 20926459 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20926453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10463231 + 10463232.

It is an arithmetic number, because the mean of its divisors is an integer number (10463232).

Almost surely, 2^20926463 is an apocalyptic number.

20926463 is a deficient number, since it is larger than the sum of its proper divisors (1).

20926463 is an equidigital number, since it uses as much as digits as its factorization.

20926463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 20926463 is about 4574.5451139977. The cubic root of 20926463 is about 275.5700044874.

The spelling of 20926463 in words is "twenty million, nine hundred twenty-six thousand, four hundred sixty-three".