64498775 has 12 divisors (see below), whose sum is σ = 87249624. Its totient is φ = 46908000.

The previous prime is 64498747. The next prime is 64498789. The reversal of 64498775 is 57789446.

It is not a de Polignac number, because 64498775 - 2¹⁴ = 64482391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116996 + ... + 117545.

It is an arithmetic number, because the mean of its divisors is an integer number (7270802).

Almost surely, 2^64498775 is an apocalyptic number.

64498775 is a deficient number, since it is larger than the sum of its proper divisors (22750849).

64498775 is a wasteful number, since it uses less digits than its factorization.

64498775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234562 (or 234557 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 50.

The square root of 64498775 is about 8031.1129365736. The cubic root of 64498775 is about 401.0364268126.

The spelling of 64498775 in words is "sixty-four million, four hundred ninety-eight thousand, seven hundred seventy-five".