469798421 has 2 divisors, whose sum is σ = 469798422. Its totient is φ = 469798420.

The previous prime is 469798403. The next prime is 469798423. The reversal of 469798421 is 124897964.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 273406225 + 196392196 = 16535^2 + 14014^2 .

It is a cyclic number.

It is not a de Polignac number, because 469798421 - 2¹⁴ = 469782037 is a prime.

It is a Sophie Germain prime.

Together with 469798423, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 469798421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (469798423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234899210 + 234899211.

It is an arithmetic number, because the mean of its divisors is an integer number (234899211).

Almost surely, 2^469798421 is an apocalyptic number.

It is an amenable number.

469798421 is a deficient number, since it is larger than the sum of its proper divisors (1).

469798421 is an equidigital number, since it uses as much as digits as its factorization.

469798421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 50.

The square root of 469798421 is about 21674.8338171253. The cubic root of 469798421 is about 777.3868397463.

The spelling of 469798421 in words is "four hundred sixty-nine million, seven hundred ninety-eight thousand, four hundred twenty-one".