428812051 has 2 divisors, whose sum is σ = 428812052. Its totient is φ = 428812050.

The previous prime is 428812037. The next prime is 428812099. The reversal of 428812051 is 150218824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428812051 - 2⁵ = 428812019 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (428812151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214406025 + 214406026.

It is an arithmetic number, because the mean of its divisors is an integer number (214406026).

Almost surely, 2^428812051 is an apocalyptic number.

428812051 is a deficient number, since it is larger than the sum of its proper divisors (1).

428812051 is an equidigital number, since it uses as much as digits as its factorization.

428812051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 428812051 is about 20707.7775485444. Note that the first 3 decimals coincide. The cubic root of 428812051 is about 754.0885165801.

The spelling of 428812051 in words is "four hundred twenty-eight million, eight hundred twelve thousand, fifty-one".