64766457 has 24 divisors (see below), whose sum is σ = 108126720. Its totient is φ = 36590400.

The previous prime is 64766453. The next prime is 64766461. The reversal of 64766457 is 75466746.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64766453) and next prime (64766461).

It is not a de Polignac number, because 64766457 - 2² = 64766453 is a prime.

It is a super-3 number, since 3×64766457³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (64766453) 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, 169 + ... + 11382.

It is an arithmetic number, because the mean of its divisors is an integer number (4505280).

Almost surely, 2^64766457 is an apocalyptic number.

It is an amenable number.

64766457 is a deficient number, since it is larger than the sum of its proper divisors (43360263).

64766457 is a wasteful number, since it uses less digits than its factorization.

64766457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11653 (or 11650 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 64766457 is about 8047.7609929719. The cubic root of 64766457 is about 401.5904531819.

The spelling of 64766457 in words is "sixty-four million, seven hundred sixty-six thousand, four hundred fifty-seven".