429686397 has 32 divisors (see below), whose sum is σ = 731381760. Its totient is φ = 244229040.

The previous prime is 429686363. The next prime is 429686399. The reversal of 429686397 is 793686924.

It is a happy number.

It is not a de Polignac number, because 429686397 - 2⁶ = 429686333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (429686399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30148 + ... + 42050.

It is an arithmetic number, because the mean of its divisors is an integer number (22855680).

Almost surely, 2^429686397 is an apocalyptic number.

It is an amenable number.

429686397 is a deficient number, since it is larger than the sum of its proper divisors (301695363).

429686397 is a wasteful number, since it uses less digits than its factorization.

429686397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12110 (or 12104 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 429686397 is about 20728.8783343431. The cubic root of 429686397 is about 754.6006964165.

The spelling of 429686397 in words is "four hundred twenty-nine million, six hundred eighty-six thousand, three hundred ninety-seven".