64464231 has 8 divisors (see below), whose sum is σ = 92564080. Its totient is φ = 39670272.

The previous prime is 64464223. The next prime is 64464233. The reversal of 64464231 is 13246446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64464231 - 2³ = 64464223 is a prime.

It is a super-2 number, since 2×64464231² = 8311274156842722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64464233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826426 + ... + 826503.

It is an arithmetic number, because the mean of its divisors is an integer number (11570510).

Almost surely, 2^64464231 is an apocalyptic number.

64464231 is a deficient number, since it is larger than the sum of its proper divisors (28099849).

64464231 is a wasteful number, since it uses less digits than its factorization.

64464231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652945.

The product of its digits is 13824, while the sum is 30.

The square root of 64464231 is about 8028.9620126141. The cubic root of 64464231 is about 400.9648188570.

The spelling of 64464231 in words is "sixty-four million, four hundred sixty-four thousand, two hundred thirty-one".