857655467 has 2 divisors, whose sum is σ = 857655468. Its totient is φ = 857655466.

The previous prime is 857655431. The next prime is 857655479. The reversal of 857655467 is 764556758.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 857655467 - 2¹² = 857651371 is a prime.

It is not a weakly prime, because it can be changed into another prime (857655427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428827733 + 428827734.

It is an arithmetic number, because the mean of its divisors is an integer number (428827734).

Almost surely, 2^857655467 is an apocalyptic number.

857655467 is a deficient number, since it is larger than the sum of its proper divisors (1).

857655467 is an equidigital number, since it uses as much as digits as its factorization.

857655467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056000, while the sum is 53.

The square root of 857655467 is about 29285.7553599015. The cubic root of 857655467 is about 950.1035776263.

The spelling of 857655467 in words is "eight hundred fifty-seven million, six hundred fifty-five thousand, four hundred sixty-seven".