64467431 has 8 divisors (see below), whose sum is σ = 75668640. Its totient is φ = 53764128.

The previous prime is 64467419. The next prime is 64467433. The reversal of 64467431 is 13476446.

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

It is a cyclic number.

It is not a de Polignac number, because 64467431 - 2¹⁴ = 64451047 is a prime.

It is a super-2 number, since 2×64467431² = 8312099319479522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64467391 and 64467400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64467433) 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, 124196 + ... + 124713.

It is an arithmetic number, because the mean of its divisors is an integer number (9458580).

Almost surely, 2^64467431 is an apocalyptic number.

64467431 is a deficient number, since it is larger than the sum of its proper divisors (11201209).

64467431 is a wasteful number, since it uses less digits than its factorization.

64467431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248953.

The product of its digits is 48384, while the sum is 35.

The square root of 64467431 is about 8029.1612887026. The cubic root of 64467431 is about 400.9714533693.

The spelling of 64467431 in words is "sixty-four million, four hundred sixty-seven thousand, four hundred thirty-one".