64797471 has 24 divisors (see below), whose sum is σ = 99242624. Its totient is φ = 40668480.

The previous prime is 64797449. The next prime is 64797479. The reversal of 64797471 is 17479746.

It is not a de Polignac number, because 64797471 - 2¹⁰ = 64796447 is a prime.

It is a super-3 number, since 3×64797471³ (a number of 24 digits) contains 333 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 (64797479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7185 + ... + 13461.

Almost surely, 2^64797471 is an apocalyptic number.

64797471 is a deficient number, since it is larger than the sum of its proper divisors (34445153).

64797471 is a wasteful number, since it uses less digits than its factorization.

64797471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6351 (or 6348 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 64797471 is about 8049.6876336911. The cubic root of 64797471 is about 401.6545446852.

The spelling of 64797471 in words is "sixty-four million, seven hundred ninety-seven thousand, four hundred seventy-one".