420735347 has 4 divisors (see below), whose sum is σ = 423762360. Its totient is φ = 417708336.

The previous prime is 420735311. The next prime is 420735353. The reversal of 420735347 is 743537024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420735347 - 2¹² = 420731251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420735247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1513298 + ... + 1513575.

It is an arithmetic number, because the mean of its divisors is an integer number (105940590).

Almost surely, 2^420735347 is an apocalyptic number.

420735347 is a deficient number, since it is larger than the sum of its proper divisors (3027013).

420735347 is a wasteful number, since it uses less digits than its factorization.

420735347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027012.

The product of its (nonzero) digits is 70560, while the sum is 35.

The square root of 420735347 is about 20511.8343158285. The cubic root of 420735347 is about 749.3240410297.

The spelling of 420735347 in words is "four hundred twenty million, seven hundred thirty-five thousand, three hundred forty-seven".