64948415 has 24 divisors (see below), whose sum is σ = 94634592. Its totient is φ = 41909760.

The previous prime is 64948397. The next prime is 64948417. The reversal of 64948415 is 51484946.

It is not a de Polignac number, because 64948415 - 2¹⁰ = 64947391 is a prime.

It is a super-2 number, since 2×64948415² = 8436593222024450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64948417) 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 23 ways as a sum of consecutive naturals, for example, 6905 + ... + 13325.

It is an arithmetic number, because the mean of its divisors is an integer number (3943108).

Almost surely, 2^64948415 is an apocalyptic number.

64948415 is a deficient number, since it is larger than the sum of its proper divisors (29686177).

64948415 is a wasteful number, since it uses less digits than its factorization.

64948415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6467 (or 6450 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 64948415 is about 8059.0579474279. The cubic root of 64948415 is about 401.9661840486.

The spelling of 64948415 in words is "sixty-four million, nine hundred forty-eight thousand, four hundred fifteen".