64968477 has 32 divisors (see below), whose sum is σ = 103160064. Its totient is φ = 35596800.

The previous prime is 64968473. The next prime is 64968481. The reversal of 64968477 is 77486946.

It is an interprime number because it is at equal distance from previous prime (64968473) and next prime (64968481).

It is not a de Polignac number, because 64968477 - 2² = 64968473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64968473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51903 + ... + 53139.

It is an arithmetic number, because the mean of its divisors is an integer number (3223752).

Almost surely, 2^64968477 is an apocalyptic number.

It is an amenable number.

64968477 is a deficient number, since it is larger than the sum of its proper divisors (38191587).

64968477 is a wasteful number, since it uses less digits than its factorization.

64968477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349.

The product of its digits is 2032128, while the sum is 51.

The square root of 64968477 is about 8060.3025377463. The cubic root of 64968477 is about 402.0075677395.

The spelling of 64968477 in words is "sixty-four million, nine hundred sixty-eight thousand, four hundred seventy-seven".