425329947 has 60 divisors (see below), whose sum is σ = 744281720. Its totient is φ = 243045684.

The previous prime is 425329939. The next prime is 425329963. The reversal of 425329947 is 749923524.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 425329947 - 2³ = 425329939 is a prime.

Its product of digits (544320) is a multiple of the sum of its prime divisors (10).

It is not an unprimeable number, because it can be changed into a prime (425329147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 60761418 + ... + 60761424.

Almost surely, 2^425329947 is an apocalyptic number.

425329947 is a deficient number, since it is larger than the sum of its proper divisors (318951773).

425329947 is an frugal number, since it uses more digits than its factorization.

425329947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61 (or 10 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 425329947 is about 20623.5289657226. The cubic root of 425329947 is about 752.0418122924.

The spelling of 425329947 in words is "four hundred twenty-five million, three hundred twenty-nine thousand, nine hundred forty-seven".