64673430 has 16 divisors (see below), whose sum is σ = 155216304. Its totient is φ = 17246240.

The previous prime is 64673407. The next prime is 64673437. The reversal of 64673430 is 3437646.

It is a junction number, because it is equal to n+sod(n) for n = 64673391 and 64673400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64673437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1077861 + ... + 1077920.

It is an arithmetic number, because the mean of its divisors is an integer number (9701019).

Almost surely, 2^64673430 is an apocalyptic number.

64673430 is an abundant number, since it is smaller than the sum of its proper divisors (90542874).

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

64673430 is a wasteful number, since it uses less digits than its factorization.

64673430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155791.

The product of its (nonzero) digits is 36288, while the sum is 33.

The square root of 64673430 is about 8041.9792339946. The cubic root of 64673430 is about 401.3980868563.

The spelling of 64673430 in words is "sixty-four million, six hundred seventy-three thousand, four hundred thirty".