428692086 has 12 divisors (see below), whose sum is σ = 928832892. Its totient is φ = 142897356.

The previous prime is 428692081. The next prime is 428692093. The reversal of 428692086 is 680296824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428692081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11908096 + ... + 11908131.

It is an arithmetic number, because the mean of its divisors is an integer number (77402741).

Almost surely, 2^428692086 is an apocalyptic number.

428692086 is an abundant number, since it is smaller than the sum of its proper divisors (500140806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428692086 is a wasteful number, since it uses less digits than its factorization.

428692086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23816235 (or 23816232 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 428692086 is about 20704.8807289489. The cubic root of 428692086 is about 754.0181884366.

The spelling of 428692086 in words is "four hundred twenty-eight million, six hundred ninety-two thousand, eighty-six".