427469805 has 48 divisors (see below), whose sum is σ = 878177664. Its totient is φ = 195410880.

The previous prime is 427469797. The next prime is 427469807. The reversal of 427469805 is 508964724.

It is a happy number.

It is not a de Polignac number, because 427469805 - 2³ = 427469797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427469807) 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 47 ways as a sum of consecutive naturals, for example, 16626 + ... + 33635.

It is an arithmetic number, because the mean of its divisors is an integer number (18295368).

Almost surely, 2^427469805 is an apocalyptic number.

427469805 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

427469805 is an abundant number, since it is smaller than the sum of its proper divisors (450707859).

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

427469805 is an equidigital number, since it uses as much as digits as its factorization.

427469805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50288 (or 50276 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 427469805 is about 20675.3429233955. The cubic root of 427469805 is about 753.3008908462.

The spelling of 427469805 in words is "four hundred twenty-seven million, four hundred sixty-nine thousand, eight hundred five".