428997463 has 2 divisors, whose sum is σ = 428997464. Its totient is φ = 428997462.

The previous prime is 428997427. The next prime is 428997467. The reversal of 428997463 is 364799824.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428997463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 428997463.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428997467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214498731 + 214498732.

It is an arithmetic number, because the mean of its divisors is an integer number (214498732).

Almost surely, 2^428997463 is an apocalyptic number.

428997463 is a deficient number, since it is larger than the sum of its proper divisors (1).

428997463 is an equidigital number, since it uses as much as digits as its factorization.

428997463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 52.

The square root of 428997463 is about 20712.2539333603. The cubic root of 428997463 is about 754.1971864996.

The spelling of 428997463 in words is "four hundred twenty-eight million, nine hundred ninety-seven thousand, four hundred sixty-three".