20346463 has 2 divisors, whose sum is σ = 20346464. Its totient is φ = 20346462.

The previous prime is 20346461. The next prime is 20346497. The reversal of 20346463 is 36464302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20346463 - 2¹ = 20346461 is a prime.

It is a super-2 number, since 2×20346463² = 827957113220738, which contains 22 as substring.

Together with 20346461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20346461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10173231 + 10173232.

It is an arithmetic number, because the mean of its divisors is an integer number (10173232).

Almost surely, 2^20346463 is an apocalyptic number.

20346463 is a deficient number, since it is larger than the sum of its proper divisors (1).

20346463 is an equidigital number, since it uses as much as digits as its factorization.

20346463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 20346463 is about 4510.7053772110. The cubic root of 20346463 is about 273.0002057363. Note that the first 3 decimals are identical.

The spelling of 20346463 in words is "twenty million, three hundred forty-six thousand, four hundred sixty-three".