8429457 has 16 divisors (see below), whose sum is σ = 11499840. Its totient is φ = 5491200.

The previous prime is 8429453. The next prime is 8429479. The reversal of 8429457 is 7549248.

It is not a de Polignac number, because 8429457 - 2² = 8429453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8429453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34857 + ... + 35097.

It is an arithmetic number, because the mean of its divisors is an integer number (718740).

Almost surely, 2^8429457 is an apocalyptic number.

It is an amenable number.

8429457 is a deficient number, since it is larger than the sum of its proper divisors (3070383).

8429457 is a wasteful number, since it uses less digits than its factorization.

8429457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464.

The product of its digits is 80640, while the sum is 39.

The square root of 8429457 is about 2903.3527171186. The cubic root of 8429457 is about 203.5166130915.

The spelling of 8429457 in words is "eight million, four hundred twenty-nine thousand, four hundred fifty-seven".