429620551 has 2 divisors, whose sum is σ = 429620552. Its totient is φ = 429620550.

The previous prime is 429620501. The next prime is 429620563. The reversal of 429620551 is 155026924.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 429620551 - 2²¹ = 427523399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (429620501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214810275 + 214810276.

It is an arithmetic number, because the mean of its divisors is an integer number (214810276).

Almost surely, 2^429620551 is an apocalyptic number.

429620551 is a deficient number, since it is larger than the sum of its proper divisors (1).

429620551 is an equidigital number, since it uses as much as digits as its factorization.

429620551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 429620551 is about 20727.2900061730. The cubic root of 429620551 is about 754.5621489424.

The spelling of 429620551 in words is "four hundred twenty-nine million, six hundred twenty thousand, five hundred fifty-one".